三韓 さんかん出兵 しゅっぺいではありません
sankanshuppeidewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 三韓出兵

1. It is not the case that the Three Han dispatched troops.; It wasn't the Three Han who sent out soldiers.

Negative
Polite
Formal Register