Out of 30,000 soldiers, 3,000 soldiers were led by Nobutomo AKIYAMA that invaded the territory of Nobunaga, Higashi Mino Province, and 5,000 soldiers were led by Masakage YAMAGATA that invaded the territory of Ieyasu, Mikawa Province, while Shingen, himself and Nobuharu BABA invaded Totomi Province via Aokuzuretoge, leading as many as 20,000 soldiers (the total number of soldiers are through to have tallied 22,000 including 2,000 reinforcement troops from the Gohojo family).
約3万の全軍のうち、3千を秋山信友に預けて信長の領土・東美濃に、山県昌景に5千を預けて家康の領土・三河に、そして自らは馬場信春と共に2万の大軍を率いて青崩峠より遠江に攻め入った（これには後北条家の援軍2000も加わり、総勢は2万2000ともされる）。