Mongol Empire his generals and other associates, and some Mongols who had previously been allies broke their allegiance. War ensued, and Temujin and the forces still loyal to him prevailed, defeating the remaining rival tribes between 1203 and 1205 and bringing them under his sway. In 1206, Temujin was crowned as the khagan of the "Yekhe Mongol Ulus" (Great Mongol State) at a kurultai (general assembly/council). It was there that he assumed the title of Genghis Khan (universal leader) instead of one of the old tribal titles such as Gur Khan or Tayang Khan, marking the start of the Mongol Empire. Genghis
Mongol invasion of the Latin Empire his erstwhile enemies, the Seljuks, at a critical juncture in 1242 while they were under Mongol attack. As a result, the position of Vatatzes was strengthened with regards to the rump Seljuk state and the position of Baldwin, defeated by the Mongols himself, was weakened. Mongol invasion of the Latin Empire In the summer of 1242, a Mongol army invaded the Latin Empire of Constantinople. The army, a detachment of the army under Qadan then devastating Bulgaria, entered the empire from the north. It was met by the Emperor Baldwin II, who was victorious in a first encounter but was