. Manuel's campaign was not finished in 1149, as seen in the coming, much larger incursion again personally led by Manuel against Uroš II in 1150. According to Choniates, Uroš II behaved "worse than before", meaning he organized war against Byzantium. Manuel mustered a large army in
Niš, which included the most prominent military commanders such as
protosebastos John Komnenos,
John Doukas Kamateros,
John Kantakouzenos,
Michael Branas and
Giphardos, which commenced at the end of the summer of 1150, "when the roads to Serbia become more suitable for the army". Armed conflict likely began in late September or early October. The Byzantines learnt that the Serbian army awaited military aid from Hungary. Manuel heard of this while at Niš, and decided to send a detachment across the Lugomir
župa (opposite
Ćuprija) to the
Sava river to clash with this force, stopping it from joining the Serbian army. Up until this, Hungary was not a factor for Manuel in this campaign in Serbia. The Hungarian supportive unit most likely descended by the Drina which was the Serbian–Bosnian natural border, and not
central Serbia which was militarily in firm Byzantine control; the Byzantine detachment that arrived at the Sava thus changed course to the Drina. The detachment clashed with the Hungarian unit "while procuring food for the cattle", likely while camped by the road which the Hungarian unit travelled on, and Manuel, still at Niš, then sent another detachment under his nephew,
protosebastos John Komnenos, when he heard of the clash. This Hungarian unit was defeated by John before it could join the Serbs, and was pursued to the
Strymon river where it lost many men, and was then pursued towards the
Tara, until the Byzantine force decided to return to Manuel's army. At this time, the Serbian army likely was situated between the Lim and Tara, closer to Tara. Uroš II had made extensive planning, mustering well-armed Serbs and
župans (counts). Manuel camped half-way on the road to
Sečenica (
Sočanica on the
Ibar river), likely somewhere near
Kuršumlija, and was still unaware of the location of the Serbian army. From Serbian captives, he learnt that the Hungarian aid had not yet joined the Serbian army, and thus led the Byzantine army onward. The likely route was across the Ibar bridge at the Sočanica confluence, into Rogozna, Ras, Sjenica, towards Bijelo Polje and from there on the Bijelo Polje–Mojkovac road which was the most convenient. Arriving at the
Tara river, in the early morning, the Byzantines had sent scouts to attract the Serbs out of the mountain and shoot them with archers, however, the scouts returned in fear, seeing an "innumerable army". The Serbian army was supported by Hungarian cavalry that included non-Christian
Khalisioi (who stayed at
Syrmia). The Byzantines had failed to prevent the Hungarian supportive unit from joining the Serbian army. The Byzantine army clashed with the Serbian army most likely in what is today
Mojkovac and its environs on both sides of the Tara. Manuel himself took a
war flag on a hill and showed himself to the Serbs, after which they left the bridge and were pursued, and then clashed with casualties on both sides. The river bridge held by the Serbs was an important factor, however, that obstacle was early on removed by the Byzantines. From then on, there were mostly a string of fights between smaller number of troops. The outcome of the battle was uncertain, and continued in close combat. The Byzantines pursued Serbian and Hungarian troops and killed many, and managed to capture the "very influential among the Dalmats (Serbs)"
Grdeša, the
župan (count) of
Trebinje, and Vučina. While waiting for his heavy body armour, Manuel saw how many commanders, including
Giphardos (known as a good warrior) and
Michael Branas, were caught in obvious danger, and were countered by the Serbs. Manuel put on his armour and hurried to the commanders, who were bunched up in the wilderness, and scolded them and called them cowards and untrained, while they complained on the harsh nature and deep snow, then they all joined the main Byzantine troops. The left flank of the Byzantine army was then ambushed by Serbian troops, but Manuel saw that the ambuscade was small, to no threat, and then took his relatives
John Kantakouzenos and
John Doukas Komnenos to continue looking for Uroš II or the courageous Hungarian commander, to capture. Judging by Kinnamos and Choniates, most fierce fights on the Byzantine side were fought by the bands under Kantakouzenos, Doukas and Manuel himself. Choniates said Manuel had marched with "little preparation, as he deemed them unworthy opponents in battle", but the Serbs put up a much stiffer resistance than expected and boldly met the Byzantine army in battle. Kantakouzenos lost two fingers on one hand while being attacked by Serbian troops. Manuel sought to tactically surprise the Serbian army which was well-informed on Byzantine military methods. Manuel, Kantakouzenos and Doukas led a pursuit of enemy cavalry, who had noticed Manuel's golden armour, and Kinnamos mentions how Manuel "with a single lance thrust, knocked down 15 foes", and that these were hit in the back with swords and lances. One of the knocked down came back up again and ran towards the emperor, about to strike, but he kicked him down to the ground and cut him by the eye. As Manuel's horse was tired from wearing heavy armour, Kantakouzenos was ordered to assault, and he hurried and engaged commander Bakchinos, who was described by Kinnamos and Choniates as a courageous and gigantic man, hitting him in the shoulders with the lance. At one point, Bakchinos turned around and saw Manuel and John Doukas rushing, then took seven men and entered close combat with Kantakouzenos, who was in danger as more enemy troops closed in. Manuel reckoned he could save Kantakouzenos by attacking the up to 300 enemies in the surroundings, instead of them closing in, and forcing the seven to retreat with the rest. He assaulted the centre of the unit, and entered close combat with one, meanwhile Bakchinos and those around him saw this and left Kantakouzenos and rushed to attack Manuel. Manuel wielded the sword and tirelessly struck and received blows, until he and Bakchinos were left in a duel. Duels were a medieval Western tradition, which spread to Byzantium; in the early Byzantine period, individual close combat were seen as the ordinary soldier's assignment, while from the 10th century Byzantine historiography used it to promote military glory, bravery, strength and weapon handling skills. After a long sword fight, Bakchinos struck Manuel's helmet, according to Kinnamos he was unable to pierce through the chain mail face shield, but it was a blow so hard that the mail rings left marks on Manuel's face, while according to Choniates, he broke Manuel's iron visor. However, Manuel managed to strike and cut off Bakchinos hand, and then gave him over to his nephew John Doukas Komnenos, eager to continue fighting. Kantakouzenos and John Doukas dissuaded him, with Bakchinos somehow warning Manuel of a larger army through showing his hair, in a well-meaning manner. The battle ended in Byzantine victory, and forced Uroš II to negotiate. The Byzantines led 40 captives to the camp, including Grdeša and Vučina, and the one that was wounded in the eye, and Manuel and he acknowledged each other. Shortly after, Uroš II sent emissaries that asked for his forgiveness, then himself entered the camp after Manuel ordered him to do so. Uroš II was humble and yielding, and Manuel forgave him, with Uroš II "jumping at his feet" and vowed that he "will always be a subject (
doulos) to the Romans (Byzantines)". The court orator
Theodore Prodromos mentioned the 1149–1150 campaign and called the Serbs "barbarous" and Serbian ruler (
archiserbozoupanos) Uroš II a "mountain-reared swine, thrice a slave since birth, driven by senseless audacity, [who] rose against us and our Lord, having Hungarian forces for allies and thus was misled by the Sicilian Dragon". Uroš II promised 2,000 Serbian troops for the Byzantine army in the West and 500 (200 more than previously) for Asian campaigns. In essence, the results were renewal of vassal obligations. From then on, Uroš II enjoyed the support of Manuel. The 1150 campaign had taken at least or circa two months, according to the descriptions given by Kinnamos. The Serbian-Hungarian force could not have been large, due to the small number of captives, and perhaps amounted to 2,000 troops, out of which 300 were under Bakchinos. ==Aftermath==