Word

振戦

震顫、振顫
しんせん
tremor (muscular); trembling; shaking
Word

常在戦場

じょうざいせんじょう
always conducting oneself as though one were on a battlefield; being combat ready at all times (of a person)
Word

上野戦争

うえのせんそう
Battle of Ueno (battle of the Boshin war, 1868)
Word

初挑戦

はつちょうせん
first challenge; first try
Word

人質救出作戦

ひとじちきゅうしゅつさくせん
hostage rescue operation
Word

順位戦

じゅんいせん
rank-deciding competitions (e.g. in go or shogi)
Word

春秋戦国時代

しゅんじゅうせんごくじだい
the Spring and Autumn period and the Warring States period (Chinese history)
Word

出口戦略

いでぐちせんりゃく
exit strategy (military, marketing, economics, etc.)
Word

銃撃戦

じゅうげきせん
firefight; gun battle; shoot-out
Word

十五年戦争

じゅうごねんせんそう
Fifteen Years' War (starting with the Manchurian Incident in 1931 and ending with the Japanese surrender in 1945)