Meaning of kāi zhàn:
开战
to start a war; to make war; to battle against
Liǎng guó zhī jiān de jǐnzhāng júshì bùduàn shēngjí, zuìzhōng dǎozhì le kāi zhàn.
两国之间的紧张局势不断升级,最终导致了开战。
The escalating tensions between the two countries eventually led to the start of a war.
Zài guó wáng de mìng lìng xià, liǎng guó zhōng yú kāi zhàn le.
在国王的命令下,两国终于开战了。
Under the king's orders, the two countries finally went to war.
Liǎng guó zhèngshì kāizhàn.
两国正式开战。
The two countries officially went to war.