他参加了游骑兵部队。
He signs up for army rangers .
自那以后，该部队大部分成员均从诸如绿色贝雷帽及游骑兵等美国特种部队的现役士兵中进行挑选。
Since then it has been composed largely of soldiers who have served in US special-forces like the Green Berets or Rangers .
游骑兵部队