结成联盟往往是为了共同防御的英文

leagues are commonly made for mutual defense

• 结成:    form; enter into
• 联盟:    alliance; coalitio ...
• 往往:    often; frequently; ...
• 是:    Semantics
• 为了:    for; for the sake ...
• 共同防御:    work together for ...

例句与用法

1. Leagues are commonly made for mutual defense .
   结成联盟往往是为了共同防御。