三韓 さんかん出兵 しゅっぺいじゃありませんでした
sankanshuppeijārimasendeshita

Noun
Desu Copula

The polite, past negative form of 三韓出兵

1. It was not the Three Han armies.; It wasn't the armies of the Three Han.

Past/Perfective
Negative
Polite
Terminal Form