They gathered soldiers to fight the invading army.

他们召集士兵对抗入侵的军队。

《牛津词典》

Bayin Naung was appointed commander-in-chief of the invading army in AD 1547.

公元1547年，勃应囊被任命为进军泰国的总指挥。

youdao

He was a member of the National Resistance, which is an underground military organization resolute in driving out the invading army from their country.

他是国家抵抗组织的一员，这个组织实际上是一个地下军事组织，他们主张坚决把入侵敌人从本国赶出。

youdao

Well, what happens is one army is invading the land of the other.

好的,当一支军队侵入了对方的领土

耶鲁公开课 - 古希腊历史简介课程节选

It's believed that Moenjodaro had already fallen into economic decline when an invading army attacked, delivering the sudden fatal blow.

FORBES: Magazine Article

There is no question that, even after the incineration of its cities, Japan still had the capacity to inflict unacceptable losses upon an invading army.

ECONOMIST: Japanese history

But this is the burden of creating this kind of work, a burden that perhaps comes from the dualistic life I have lived as an American citizen growing up in the comfort of suburbia while family members in Afghanistan fought, died and, yes, killed in their battle against an invading army.

CNN: An 'Afghan redneck' creates art in a war zone