Letter from Naoe Kanetsugu to Uesugi clan vassals

YAMAGATA, Japan - Yamagata University displays on Feb. 4, 2014 in Yamagata, northeastern Japan, a letter written by feudal lord Naoe Kanetsugu (1560-1619) addressed to vassals of the Uesugi clan, praising them for putting up a good fight against the forces of rival lord Date Masamune.