戦没 せんぼつ しゃ追悼 ついとう しきだったら
sen botsu sha tsui tōshikidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 戦没者追悼式

1. If it were a war dead memorial service; If the war dead memorial service were to happen

Tara Conditional