Correct
压阵
/ yāzhèn /
Strokes
Definition
to bring up the rear/to provide support/to hold the lines
Example
As a Verb
bring up the rear; take up the rear; close the rear
1
Qíbīng
骑兵
zài
在
duìwǔ
队伍
hòumiàn
后面
yāzhèn
压阵
。
The mounted soldiers brought up the rear in the procession.
As a Verb
keep troops in battle array; hold the line
As a Verb
keep a situation well under one's control