宇宙 うちゅう開発 かいはつ競争 きょうそうだったら
uchūkaihatsu kyōsōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 宇宙開発競争

1. If/when space development competition…; Had there been a space race…

Tara Conditional