financial/military assistance 财政/军事援助

He’ s been running the company with the assistance of his son. 他一直在儿子的协助下经营这家公司。

be of assistance (=help someone) Can I be of any assistance? 帮忙

come to sb’ s assistance (=do something to help someone) I waited patiently hoping that someone would come to my assistance. 帮助某人