This period began and ended with clashes between "Eastern" and "Western" armies during the Ōnin War and the Battle of Sekigahara.
The contrasting personalities of three leaders during this period are illustrated in a series of short poems describing reactions to a cuckoo refusing to sing. One man from this period was noted for wearing a helmet with a crescent moon and was known as the "one-eyed dragon." The use of teppo became common during this period, during which the rise of a man nicknamed "little monkey" to the rank of kampaku is considered an example of (*) gekokujō. Early in this period, the Yamana and Hosokawa families intervened in a succession struggle, and it featured the rivalry of Uesugi Kenshin and Takeda Shingen. This period began and ended with clashes between "Eastern" and "Western" armies during the Ōnin War and the Battle of Sekigahara. For 10 points, name this period during which Japan was fragmented by feuding daimyo, which was brought to an end by Tokugawa Ieyasu.
The contrasting personalities of three leaders during this period are illustrated in a series of short poems describing reactions to a cuckoo refusing to sing.
Sengoku period [or Sengoku-jidai; accept Warring States period or similar translations; prompt on Muromachi or Ashikaga; accept Azuchi-Momoyama period until "Yamana" and anti-prompt thereafter]