Congress is vested with the power to declare war.

国会被赋以战的权利。

This invasion is tantamount to a declaration of war.

这次侵略就相当于战。

The king was too precipitate in declaring war.

国王在战事上过于轻率。

China formally declared war against Japan in December 1941.

中国在1941年12月正本战。

To declare war against the small island state looks like the action of a cowardly nation.

小小的岛国战, 看来像是怯懦国家的行为。

Japan declared war on Germany.

本德国战。