In 874 peace was established between the Kievan Rus' and the Byzantine Empire. Kiev sent military assistance to Constantinople. By the early 10th century Kievan Rus were serving in the Byzantine army. In the summer of 987 the emperor Basil II asked for military help from Vladimir the Great, Grand prince of Kiev. Vladimir sent 6,000 men who arrived in the winter of 687. These were soldiers who had not been paid and wanted to go to Byzantium where they hoped they could get pay. During Basil's campaigns the Varangians proved to be an excellent fighting force. When Basil campaigned in Georgia and Armenia, he took 6,000 Varangians with him. During truce talks a Varangian and a Georgian got into an argument. General fighting broke out and many were killed on both sides. The surviving Varangians formed the Varangian Guard. They wore uniforms of blue tunics with bright red cloaks. They carried long handled battle-axes trimmed with gold. These weapons were their trademark. The sight of these axemen on a battlefield meant the Emperor was near.