Correct

降旗

/ jiàngqí / 
Strokes

Definition

to lower a flag/to strike the colors

Example

As a Verb

lower a flag

1
Tāmen
他们
zài
在
tàiyang
太阳
luòshān
落山
shí
时
jiàng
降
le
了
qí
旗
  
。

They lowered the flag at sunset.

2
Jiàngqí
降旗
pào
炮

evening/retreat gun