Siege of Minowa
1566 CE.
Shown on the map at 36.405°, 138.951°.
The 1566 siege of Minowa was one of several battles fought by the Takeda clan in their campaigns to seize the lands of the Uesugi clan, during Japan's Sengoku period. It is part of a larger power struggle between Takeda Shingen and Uesugi Kenshin.
Text from the Wikipedia article Siege of Minowa, licensed CC BY-SA 4.0.