extremely cautious about 意味

• 《be ～》～に十分気を付ける
  

例文

1. extremely cautious about a military intervention by russia , japan drove the armed peasants to haenam and further to chindo island to annihilate them totally out of fear of the expansion of armed peasant in the north .
   ロシアの軍事介入を極度に警戒した日本は農民軍の北進を恐れ朝鮮最西南端の海南さらに珍島まで追いつめて徹底的に殲滅した。