As Katsuyori TAKEDA, his opposition also aimed at making peace and an alliance with the Oda clan, the move by Ujimasa to forestall his enemy and formed an alliance before Katsuyori was a sophisticated diplomacy.
敵対した武田勝頼も織田家との和睦・同盟を画策したため、先手を打って同盟を成立した高度な外交と言える。