The Gothic War of 376–382 was one of several Gothic Wars in Roman history in which the Goths fought against the Roman Empire. This particular conflict included the catastrophic Roman defeat at the Battle of Adrianople, which is commonly seen as a cause of the decline of the Western Roman Empire, although its significance is widely debated.
Background
In the summer of 376, a massive number of Goths arrived on the Danube River, the border of the Roman Empire, requesting asylum from the Huns. There were two groups: the Thervings led by Fritigern and Alavivus and the Greuthungi led by Alatheus and Saphrax. Eunapius states their number as 200,000 including civilians, but Peter Heather estimates that the Thervings may have had only 10,000 warriors and 50,000 people in total, with the Greuthungi about the same size. The Cambridge Ancient History places modern estimates at around 90,000 people. Noel Lenski accepts Eunapius' number as approximating the total population of migrants who joined forces against the Romans in the first year (including Thervings and Greuthungi, but also some Taifali, Alans and Huns), which population could have fielded a fighting force of 40,000-50,000 warriors.
The Goths sent ambassadors to Valens, the Eastern Roman emperor, requesting permission to settle their people inside the Empire. It took them some time to arrive, for the Emperor was in Antioch preparing for a campaign against the Sasanian Empire over control of Armenia and Iberia. The bulk of his forces were stationed in the East, far away from the Danube. Ancient sources are unanimous that Valens was pleased at the appearance of the Goths, as it offered the opportunity of new soldiers at low cost. With Valens committed to action on the Eastern frontier, the appearance of a large number of barbarians meant his skeleton force in the Balkans were outnumbered. Valens must have appreciated the danger when he gave the Thervings permission to enter the empire and the terms he gave them were highly favorable. This was not the first time barbarian tribes had been settled; the usual course was that some would be recruited into the army and the rest would be broken up into small groups and resettled across the empire at the Emperor's discretion. This would keep them from posing a unified threat and assimilate them into the greater Roman population. The agreement differed with the Thervings by allowing them to choose the place of their settlement, Thrace, and allowed them to remain united. The group of Thervings under the leaders named Alavivus and Fritigern were favored for crossing since their group had already allied with Valens and converted to Christianity in the wake of a civil war among the Thervings after 370. The Therving leader Athanaric, who had confronted Valens in his Gothic War of 367-369 was denied entry, as were the Greuthungi, against whom the Roman army and naval forces blocked the river to deny their crossing.
The Thervings were probably allowed to cross at or near the fortress of Durostorum. They were ferried by the Romans in boats, rafts and in hollowed tree-trunks; Ammianus Marcellinus remarks bitterly that "diligent care was taken that no future destroyer of the Roman state should be left behind, even if he were smitten by a fatal disease". Even so, the river swelled with rain and many drowned. The Goths were to have their weapons confiscated but, whether because the Romans in charge accepted bribes, the Romans did not have the manpower to check all of the incoming warriors, or warriors recruited into the Roman army would need their own arms, many Goths were allowed to retain their weapons. The Romans placed the Thervings along the southern bank of the Danube in Lower Mœsia as they waited for the land allocations to begin. In the interim, the Roman state was to provide them food.
Breakout
So many people in such a small area caused a food shortage and the Thervings began to starve. Roman logistics could not cope with the vast numbers, and officials under the command of Lupicinus simply sold off much of the food before it reached the hands of the Goths. Desperate, Gothic families sold many of their children into slavery to Romans for dog meat at the price of one child per one dog.
This treatment caused the Therving Goths to grow rebellious and Lupicinus decided to move them south to Marcianople, his regional headquarters. To guard the march south, Lupicinus was forced to pull out the Roman troops guarding the Danube, which allowed the Greuthungi promptly to cross into Roman territory. The Thervings then deliberately slowed their march to allow the Greuthungi to catch up. As the Thervings approached Marcianople, Lupicinus invited Fritigern, Alavivus and a small group of their attendants to dine with him inside the city. The bulk of the Goths were encamped some distance outside, with Roman troops between them and the city. Due to the persistent refusal of the Roman soldiers to allow the Goths to buy supplies in the town's market, fighting broke out and several Roman soldiers were killed and robbed. Lupicinus, having received the news as he sat at the banquet with the Gothic leaders, ordered Fritigern and Alavivus held hostage and their retainers executed. When news of the killings came to the Goths outside, they prepared to assault Marcianople. Fritigern advised Lupicinus that the best way to calm the situation was to allow him to rejoin his people and show them that he was still alive. Lupicinus agreed and set him free. Alavivus is not mentioned again in the sources and his fate is unknown.
Having survived the chaos of the night and the earlier humiliations, Fritigern and the Thervings decided it was time to break the treaty and rebel against the Romans, and the Greuthungi immediately joined them. Fritigern led the Goths away from Marcianople towards Scythia. Lupicinus and his army pursued them 14 km (8.7 mi) from the city, fought the Battle of Marcianople and were annihilated. All the junior officers were killed, the military standards were lost and the Goths secured new weapons and armor from the dead Roman soldiers. Lupicinus survived and escaped back to Marcianople. The Thervings then raided and pillaged throughout the region.
At Adrianople a small Gothic force employed by the Romans was garrisoned under the command of Sueridus and Colias, who were themselves Goths. When they received news of the events they decided to remain in place "considering their own welfare the most important thing of all." The Emperor, afraid of having a Roman garrison under Gothic control so close to a Gothic rebellion, ordered Sueridus and Colias to march east to Hellespontus. The two commanders asked for food and money for the journey, as well as a postponement of two days to prepare. The local Roman magistrate, angry at this garrison for having earlier pillaged his suburban villa, armed people from the city and stirred them against the garrison. The mob demanded that the Goths follow orders and leave immediately. The men under Sueridus and Colias initially stood still but when they were pelted with curses and missiles from the mob, attacked and killed many. The Gothic garrison left the city and joined Fritigern, and the Goths besieged Adrianople. But lacking the equipment and the experience to conduct a siege and losing many men to missiles, they abandoned the city. Fritigern declared he now "kept peace with walls". The Goths once again dispersed to loot the rich and undefended countryside. Using prisoners and Roman traitors, the Goths were led to hidden hoards, rich villages and such places.
For without distinction of age or sex all places were ablaze with slaughter and great fires, sucklings were torn from the very breasts of their mothers and slain, matrons and widows whose husbands had been killed before their eyes were carried off, boys of tender or adult age were dragged away over the dead bodies of their parents. Finally many aged men, crying that they had lived long enough after losing their possessions and their beautiful women, were led into exile with their arms pinioned behind their backs and weeping over the glowing ashes of their ancestral homes.
377: Containing the Goths
Many Goths inside Roman territory joined Fritigern, as did assorted slaves, miners and prisoners. Roman garrisons in fortified towns held out but those outside of them were easy prey. The Goths created a vast wagon train to hold all the loot and supplies pillaged from the Roman countryside and they had much rage against the Roman population for what they had endured. Those who had started as starving refugees had transformed into a powerful army.
Valens, now recognizing the seriousness of the situation from his base in Antioch, sent general Victor to negotiate a peace with the Sassanids. He also began to transfer the Eastern Roman army to Thrace. While the main army mobilized, he sent ahead an advance force under Traianus and Profuturus. Valens also reached out to the Western Roman emperor Gratian, his co-emperor and nephew, for aid. Gratian responded by sending the comes domesticorum Ricomer and the comes rei militaris Frigeridus to guard the western passes through the Haemus mountains with their soldiers. The aim was to contain the Goths from spreading westward and for the two forces to join up eventually with the East Roman army. These huge movements of troops and the cooperation of the West spoke to the grave threat the Goths posed.
Traianus and Profuturus arrived leading troops of Armenians, but Frigeridus, leading the Pannonian and the transalpine auxiliaries, fell ill from gout. Ricomer, having led a force cut from Gratian's palatine army, took command of the combined forces by the mutual consent of the other leaders, probably at Marcianople. The Goths withdrew north of the Haemus mountains, and the Romans moved to engage. At a place called Ad Salices ("The Willows"), they fought the Battle of the Willows. The Romans were outnumbered, and during the battle, their left wing began to collapse. Only with hasty reinforcements and Roman discipline was the situation retrieved. The battle lasted until dusk, when the opposing armies ceased combat and left the field. The Goths withdrew into their wall of wagons, leaving the battle a bloody draw. Both sides counted heavy losses, including Profuturus, who was slain on the battlefield.
After the battle, the Romans retreated to Marcianople, and the Goths of Fritigern spent seven days within their wagon fort before moving out. Frigeridus destroyed and enslaved a band of marauding Goths under Farnobius and sent the survivors to Italy. That autumn, Ricomer returned to Gaul to collect more troops for the next year's campaign. Valens meanwhile sent soldiers under magister equitum Saturninus to Thrace to join up with Traianus. Saturninus and Traianus erected a line of forts in the Haemus passes to block the Goths. The Romans hoped to weaken the enemy with the rigors of winter and starvation and then lure Fritigern into open battle on the plains between the Haemus mountains and the Danube to finish him off. The Goths, once again hungry and desperate, tried to break through the passes but were repulsed each time. Fritigern then enlisted the aid of mercenary Huns and Alans, who boosted his strength. Saturninus, realizing he could no longer hold the passes against them, abandoned the blockade and retreated. The Goths were thus free to raid anew, reaching as far as the Rhodope Mountains and the Hellespont.