プログレッシブ和英中辞典(第4版)の解説
はたいろ【旗色】
〔戦いの成り行き〕the tide of war；〔勝算〕odds；〔形勢〕the outlook
彼らの旗色は悪かった［よかった］
The tide of the war was 「going against them [in their favor].／〔試合などで〕Chances [The odds] were 「against them [in their favor].
我々の旗色が悪くなると彼は寝返った
When the situation [outlook] became unfavorable, he betrayed us.
さしあたり旗色を見ていることにしよう
Let's sit on the fence for the present.