"The situation is dire" 或者 "The situation is grave" 都是用来表示战势严峻的英文表达方式。

"Dire" 是一个形容词,意思是 "extremely serious or dangerous",例如:

The economic situation is dire. 经济形势严峻。
The weather forecast is dire. 天气预报极其糟糕。

"Grave" 也是一个形容词,意思是 "serious and causing worry",例如:

The situation is grave. 情况严峻。
The injury was grave. 伤势严重。

这两个词都常用来表示比较严肃的情况,而且含有一些担忧或者危险的意味。