yā​zhèn

to bring up the rear

压阵 壓陣 yā//zhèn
to bring up the rear
to be at the end of a formation or team; to act as the final participant in a competition
crack troops
(bound form) elite troops used to stabilize a battle formation or provide backup a force
to maintain control
to stabilize a situation, hold the lines, or boost morale through the presence of an influential figure or powerful force

Frequency

Movie subtitles
0.030 per million appears in 0% of films
Written text
0.532 per million

Sources