patrol guard

基本解释

It will mainly conduct such missions as patrol, guard, escort, anti-submarine warfare and maritime combat after its commissioning.
该舰入列后，将主要担负巡逻警戒、护渔护航、反潜作战、对海作战等使命任务。
eng.chinamil.com.cn
Philippine officials say a coast guard patrol spotted the Chinese fishing Saturday near the island town of Balabac, in southern Palawan.
菲律宾官员说，海岸警卫队的一支巡逻队星期六发现这些中国人正在巴拉望南部巴拉巴克岛镇附近捕鱼。
ept-cn.com
Worn as a disguise, this will allow unhindered movement around the camp, provided the wearer Is not seen to be acting suspiciously. It will not fool any Germans above the rank of Patrol Guard.
行进，如果穿戴者没有引起别人的疑心，就可以骗过所有等级在巡逻警卫之上的德国人。

In September, a Chinese trawler rammed two Japanese coast guard patrol boats in the Senkakus, stoking Chinese bluster when the captain justly was arrested.
CENTERFORSECURITYPOLICY: Center For Security Policy
And we have small Coast Guard patrol boats that can actually do scouting, work with the vessels of opportunity, to identify the small patches of oil and deal with it there.
WHITEHOUSE: Daily Press Briefing