撹乱かくらん戦術せんじゅつじゃなかったです
kakuransenjutsujanakattadesu

Noun
Desu Copula

The polite, past negative form of 撹乱戦術

1. Wasn't disruptive tactics.; Wasn't a disruptive strategy.

Past/Perfective
Negative
Polite
Casual Register