Ninja War Start Episode ((full)) — 4th Great
October 10 (the day Naruto turns 17) 1. Episode Context The Fourth Great Ninja War does not begin with a single massive explosion, but rather with a formal declaration and the simultaneous activation of the Allied Shinobi Forces’ preparations. The specific episode where the war officially starts is Episode 247: “Rivals” .
Episode 247 (titled “Rivals”)
Initiation of the Fourth Great Ninja War: Anime Episode Identification & Summary 4th great ninja war start episode
If you want the episode where the begins (with divisions fighting armies of reanimated shinobi), that is Episode 250 (or Episode 248 for the mobilization). October 10 (the day Naruto turns 17) 1