What force were most commanders opposed to the Korea invasion part of?
It should be noted that many samurai forces that were active throughout this period were not deployed to Korea; most importantly, the daimyo Tokugawa Ieyasu carefully kept forces under his command out of the Korean campaigns, and other samurai commanders who were opposed to Hideyoshi's domination of Japan either mulled Hideyoshi's call to invade Korea or contributed a small token force.