decisive engagement 意味

• 決戦｛けっせん｝
  

例文

1. hidetada ' s army , which was bothered by the outnumbered sanada clan , gave up on capturing ueda-jo castle and left , but as a result they could not join the decisive engagement in sekigahara , mino , which was the main battlefield .
   寡兵の真田勢にてこずった秀忠軍は上田城攻略を諦めて去ったが、結果として主戦場となった美濃関ヶ原での決戦に間に合わなかった。