In the long run the Romans could not lose this war, but that did not mean that it was easy for them to win it. Lupicinus had lost heavily in his rash and unprepared attack outside Marcianopolis. Other troops were dispersed as garrisons, dotted around the walled cities of the region to defend these against the enemy. At first, all the local forces were capable of doing was holding the vital mountain passes, which kept the Goths bottled up in just one part of the Thracian plain. In 377 a field army was put together from a mixture of units sent by Gratian from the west along with eastern troops. Several successes were scored when isolated groups of Goths were attacked and killed or captured. Rapid movement and surprise attacks were once again the most effective Roman tactics. However, the Goths were sometimes capable of doing the same things, and several Roman units were cut to pieces outside the city of Dibaltum - properly, Deultum - modern Debelt in Bulgaria."
Much of the time the Romans operated in small detachments, harassing the scattered enemy. Only once did they concentrate to attack a substantial number of Goths - we are not sure which particular group this was - who had laagered their wagons in a great circle near the town of Ad Salices. As the Romans gathered, the barbarians also had time to call in many of their dispersed bands of raiders. When the Romans finally launched an attack, there was very heavy fighting around the wagon line. The Roman left wing was broken by a Gothic charge and the situation was only stabilised by the units in reserve. The battle ended in a costly stalemate, but it was the Romans who withdrew some days later. After this they returned to their harassing strategy.
Valens made peace with the Persians in 377 and was back in Constantinople the following year to deal with the problem of the Goths. He had gathered a field force and the plan was to combine with an army brought east by Gratian before confronting the main strength of the enemy. Unfortunately the western army was delayed. An Alamannic soldier from Gratian's guards went on leave and happened to mention the planned move eastwards to his kinsmen. The latter decided to take advantage of the absence of the bulk of the Roman forces by raiding the provinces. Gratian fought a short campaign to punish the tribe involved and only after this was complete was he able to begin the march to join his uncle."
Adrianople and After
It was now late summer and Valens had already decided to advance on his own. At the beginning of August he was at Adrianople, closing with a substantial group of Goths led by Fritigern. His patrols reported that the enemy numbered about io,ooo. This proved to be a serious underestimate, but Ammianus fails to tell us how large the Gothic army actually was. At the same time messengers arrived telling him that Gratian was only a few days' march away. Some of his senior officers advised caution, arguing that it was only prudent to wait for Gratian and so make their victory absolutely certain. Others suggested that there was an opportunity for a quick victory over this one section of the enemy. Valens is said to have wanted to win glory for himself, so that he would not be overshadowed by the recent achievements of his nephew and the minor victories won by his own army.
Valens' confidence was boosted when a Christian clergyman acting as Fritigern's envoy arrived. Publicly he asked that the Goths be granted Thrace to settle in, but he also carried a private message in which Fritigern assured the emperor of his goodwill. He asked Valens to mount an impressive display of force so that it would be easier for him to calm his fellow tribesmen and persuade them to accept peace. No answer was given to the envoy, but this seemed a clear sign of the Goths' nervousness. On 9 August 378 Valens marched his army out of Adrianople and moved against the Gothic camp, which once again took the form of a great circle of wagons. The Roman army did not begin to arrive until early afternoon and the men were tired from marching under the hot sun.
The column began to deploy by wheeling to the right, so that the units at the head of the column would form the right of the battle line. Ahead of them were bands of Goths in front of the wagon laager, chanting their battle cries. Others lit bush fires, the wind carrying the heat and the smoke into the Roman lines. As well as adding to their discomfort, it reduced visibility. This was important as Fritigern was expecting to be joined by a large group of Greuthungi, including many cavalry."
The Gothic leader may have been playing for time to allow these extra forces to arrive when he once again asked for a parley. Alternatively, he may genuinely have understood that he had absolutely nothing to gain and a huge amount to lose from fighting a battle against the emperor. Valens refused to speak to the first group of envoys because they were too obscure, but the Romans responded to a second approach asking them to send over a senior officer as a hostage. Valens may also have simply been prevaricating, wanting to allow the rest of his army to arrive and form a battle line. On the other hand, he would certainly have been content with a bloodless victory, where the enemy submitted in response to a Roman display of force. Whatever the rival leaders' real intentions, it was not to be.
Fighting began when the two units of Roman cavalry on the far right flank attacked without orders. There was always a danger of such things when two rival armies stood for hours on end facing each other across a short distance. They were quickly driven back, but it seems to have produced a general attack all along the Roman line. On the left flank the units had scarcely arrived and were not properly formed up when they joined the attack. The cavalry units that should have protected the flank of the infantry were not in place, leaving them very exposed. They were completely unprepared to meet the sudden attack of the Greuthungi, along with the Gothic cavalry and a band of Alans. The Roman attack lost momentum, but there was still a long period of savage combat before the battle was over. Some of the infantry were surrounded, the units too confused and densely crowded to form a proper fighting line, but they continued to resist for some time. In the previous year the Romans had been able to deal with the collapse of one flank by sending in reserves. This time the army was not properly formed or under control. A regiment that should have been stationed in reserve could not be found when it was needed, most probably because it had already become drawn into the attack.
Tactically, the Roman army was in a hopeless situation, and in the end the soldiers broke and fled. The Goths pursued with enthusiasm and, as was usual in the battles of this period, the losing side suffered badly. Around two-thirds of the soldiers were killed, along with no fewer than thirty-five tribunes - some commanding regiments and others unattached but with the imperial staff - and two more senior officers. Valens was also among the dead and, just like Decius over a century before, his body was never found. One story circulated that he and his attendants had holed up in a farmhouse. When the Goths were unable to break in, they set fire to the building, killing all save one attendant, who told them how close they had come to capturing an emperor.14
We do not know how big Valens' army was at Adrianople and therefore cannot calculate the total loss. Most modern estimates put both the Roman and Gothic armies around the 15,000 mark, so that some 10,000 Roman soldiers are thought to have died. Once again, the figures are plausible but entirely conjectural. We do not know how many of the tribunes who died commanded units - but then, since we do not know how big such regiments were, let alone whether they were present in their entirety or merely as detachments, this would not tell us anything definite. Nor do we know how many tribunes commanding units survived the battle. Clearly, Valens felt confident that his army could deal with a force of 10,000 Goths - presumably all warriors, although Ammianus is not specific. Once again, we are left to guess at whether this would mean having parity or a numerical advantage. Julian was supposed to have beaten an army of Alamanni almost three times larger than his own force at Strasbourg.15
Adrianople was a major disaster. Whatever the precise figure, the critical point was that the greater part of the soldiers immediately available to the eastern emperor for active campaigning had been killed. Ammianus compared the defeat to Cannae in 216 BC, where Hannibal had slaughtered some 50,000 Roman soldiers and captured 20,000 m
ore. Adrianople was much smaller in scale, but it was the worst defeat at the hands of a foreign enemy since the third century. Luck played a part, but Valens had been overconfident in closing with the enemy, then indecisive in considering negotiation at the last minute, and had utterly failed to control the attack itself.
The Goths won a great victory, but in the long run it did nothing to improve their situation - they needed to negotiate with an emperor, not to kill one. They followed up by assaulting Adrianople, hoping to capture the supplies there as well as the imperial treasury. Enough troops had been left behind by Valens to repulse every onslaught and an attempt by some turncoats in the army to betray the city was also thwarted. After a while Fritigern and his warriors moved on to threaten Constantinople itself. He had been joined by more warbands, including groups of Alans and Huns. Even so, his army was overawed by the massive size of the city, already bigger than anywhere else save Rome, Antioch and Alexandria. As disturbing were the aggressive sallies of a unit of Saracen cavalry. Ammianus says that one of these riders rode half naked into battle and after killing a Goth by slitting his throat, seemed to drink his blood. Suitably impressed, Fritigern and his men returned to their practice of keeping peace by the use of walls. The Goths had co-operated to fight the battle - although it is more than probable that a number of bands were not present - but remained divided into many separate groups under different chiefs. This and the familiar problems of supply meant that they soon broke up into many fragments, marauding through the region in search of food and plunder.26
Fear spread rapidly as the news of the disaster at Adrianople reached the other provinces. In a particularly ruthless series of massacres, groups of Goths throughout the empire were disarmed and slaughtered by the authorities in case they, too, chose to rebel. For a while Gratian was effectively emperor of the entire world, since his younger brother was still too young to assert his own power. Within a few months - probably early in 379 - he acknowledged a recently appointed Master of Soldiers named Theodosius as Augustus of the eastern provinces. Theodosius' father and namesake came from Spain and had enjoyed a distinguished military career under Valentinian, winning victories in Britain and Africa. He was the man who exposed the misdeeds of Romanus. However, in 375 the older Theodosius had been condemned by the emperor and executed. This may have been posthumous revenge from associates of the discredited men or simply the result of the habitual back-biting of the court and paranoia of the emperor. The son was dismissed from service, but may well have been recalled by the time of Adrianople. Soon afterwards he was given a command and won a minor victory on the Danube. He was probably backed by significant figures at the eastern court. Whether or not he was Gratian's choice, the two men did show that they could work together.27
Almost the first task was to rebuild an army. Theodosius displayed little of his father's talent as a soldier, but was certainly a great organiser. Men were found from a whole range of sources and a series of strict laws passed against draft dodging, self-mutilation to avoid service and desertion. The army grew in size, but many of the new recruits were not yet properly trained and the confidence of the rest was at a low ebb. The Romans continued their previous strategy of harassing the individual groups of Goths, blocking their movements and depriving them of food. One attempt at more direct attack ended in failure when a column led by Theodosius himself was badly mauled.Z"
Over the next few years the Goths were gradually worn down by ambushes and surprise attacks. Individual groups surrendered and Gratian settled some in Italy. The details of these campaigns elude us - sadly Ammianus' account stopped a few months after Adrianople and there is no comparable narrative history until the sixth century. In the end all of the Goths who remained within the empire capitulated in 382. Fritigern is not mentioned, and it may well be that he was already dead or killed as part of the settlement. Ultimately, the Goths got much of what they originally asked for - they were settled on land in Thrace or in the adjacent border areas along the Danube. The precise details of the treaty are hotly debated and need not concern us here. It is safe to say that their fierce resistance meant that the conditions under which they were settled were far more generous than was usual. Their own chieftains seem to have retained considerable authority and may, in practice if not in theory, have enjoyed a degree of local autonomy.''
There is nothing surprising about the eventual defeat of the Goths, for they simply could not compete against the resources and organisation of the empire. What is startling is that it took six years to force their surrender, and that even then the Roman victory was not as complete as they would normally have expected. This is a serious problem for those who emphasise the strength and efficiency of the empire in the later fourth century. The allegedly enlarged and highly efficient army seems in practice to have struggled to find enough men to deal with the migrating tribes. Yet this was scarcely a new problem or one on a massive scale. Of the major battles of these campaigns the Romans were clearly beaten three times - disastrously, in the case of Adrianople, but badly enough even if on a smaller scale under Lupicinus and Theodosius - and at best managed a hard-fought draw at Ad Sauces. This is scarcely an impressive record and again confirms the impression that in this period the army operated best on a small scale, using surprise, speed and ambush rather than direct force. The empire still commanded huge resources, but it does seem to have been difficult to apply these to any problem. There was clearly a shortage of readily available and willing military manpower - the Tervingi were admitted specifically to help meet this need. In these six years of warfare the Roman Empire won not because it was efficient, but simply because it was big. In 386 another group of Goths attempting to cross the Danube were efficiently blocked by a Roman army. It is more than probable that the best course of action in 376 would have been to refuse entry, since the authorities proved so incapable of effectively processing the migrants. Even if some Goths had broken through by force, they are unlikely to have caused as much damage and disorder .31
Just a year after the treaty with the Goths a familiar problem reared its head once more. The local commander Magnus Maximus was proclaimed emperor by the troops in Britain. He was another Spaniard, probably known to - perhaps even a relation of - Theodosius. Gratian refused to recognise the usurper and massed an army to confront him when Maximus crossed into Gaul. There was some skirmishing near Paris, but after several days Gratian's army went over en masse to his opponent. He fled, but was caught at Lugdunum (modern Lyons) and executed. It was clearly a well-orchestrated coup and Maximus had secured the backing of many senior officers and court officials. Some senior members of the court were executed, but the majority switched sides. Less clear is why Gratian had lost their support. His military record was quite good, but he was accused of granting excessive favour to one regiment of Alan cavalry and starting to indulge too much in his pleasures rather than working.31
Maximus controlled the European provinces north of the Alps and clearly hoped for recognition as a colleague by Theodosius. He invited the twelve-year-old Valentinian II to move from Milan and join him at his court in Trier, so that they could rule `as father and son'. Skilfully created delays in the negotiations gave time for troops loyal to the boy emperor to secure the Alpine passes. Maximus still hoped for reconciliation and made no attempt to use force at this stage. For the moment Theodosius recognised the usurper and his name appeared in official documents. He also elevated his son Arcadius - who was no more than five or six years' old - to the rank of Augustus. However, a few years later Maximus launched a sudden attack on Italy, and by 387 he was in Milan and in full control of Valentinian's territories. The latter, along with most of his court, escaped safely to Theodosius.j2
The extension of Maximus' ambitions signalled a permanent break with the eastern emperor. Valentinian's mother Justina was a formidable woman and had clearly had considerable sway over her son's decisions. Now she is said to have exploited the beauty of the boy's sister to fascinate Theodosius. The two were marrie
d soon afterwards and allegedly the bride price was a promise to recover the lost territory from Maximus. Whatever the precise reasons, in the summer of 388 a fast-moving expeditionary force caught the western usurper at Aquileia. Maximus was stripped of the imperial robes and beheaded. There was some more fighting against forces that remained loyal to his family before the west was fully recovered .31
Formally the empire now had three Augusti - Theodosius, Valentinian and Arcadius - although it was abundantly clear that real power rested with Theodosius himself. Valentinian remained little more than a cipher. After his mother died actual control rested with some senior officers appointed by Theodosius. The most important of these was Arbogast. Like many senior officers in the army he was of barbarian - in his case Frankish - descent. As time went on, he became more and more contemptuous of the Augustus he was supposed to serve. He assumed the rank of Master of Soldiers without bothering to consult Valentinian. When the emperor dismissed him, Arbogast calmly told him to his face that he did not have the power to do this. The twenty-one-year-old Valentinian II was a pathetic figure and on 15 May 392 he was found dead in his bedroom. It may have been suicide.
How Rome Fell: Death of a Superpower Page 32