zhè / zhī / jūn / duì / fā / dòng / le / shǎn / jī / zhàn / hěn / kuài / kòng / zhì / le / biān / jìng / dì / qū

这支军队发动了闪击战，很快控制了边境地区。

This army launched a lightning war and quickly took control of the border region.