嫁姑 よめしゅうとめ戦争 せんそうであれば
yome shūtomesensōdeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 嫁姑戦争

1. If/when mother-in-law/daughter-in-law war happens; If there is mother-in-law/daughter-in-law war

Ba Conditional