Fought 1582, between the adherents of the Ota family, then predominant in Japan, and the followers of the rebel Mitsuhide. Mitsuhide sustained a crushing defeat.
Yashima (Taira War).
Fought 1184, between the adherents of the Taira family, and the rebels, under Yoshitsune. The Taira forces were defeated.
Yawata (War of the Northern and Southern Empires).
Fought January, 1353, between the armies of the Northern and Southern Emperors of Japan. The army of the latter, led by Moroushi, gained a signal victory.
Yenikale, Gulf of (Ottoman Wars).
Fought July, 1790, between the Turkish fleet, and the Russians, under Admiral Onschakoff. The battle was fiercely contested, but eventually both fleets drew off without any decisive result.
Yermuk (Moslem Invasion of Syria).
Fought November, 636, between 140,000 Imperial troops, under Manuel, the General of Heraclius, and 50,000 Moslems, under Khaled. The Moslem attack was thrice repulsed, but they returned to the charge, and after a long and sanguinary engagement, drove their opponents from the field with enormous loss. The Moslems lost 4,030 killed.