全国 ぜんこく総合 そうごう開発 かいはつ計画 けいかくであれば
zenkokusōgōkaihatsukeikakudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 全国総合開発計画

1. If the nationwide comprehensive development plan…; Were the nationwide comprehensive development plan…

Ba Conditional