我们不得不采取行动。

We have to act.

youdao

我们可能不得不采取军事行动。

We may have to take military action.

《牛津词典》

然而，因为有必要采取果断行动以解决其特殊的债务负担，所以我们不得不干预。

However, we have had to intervene because of the need to take decisive action to address its particular debt burden.

youdao