Correct

溃灭

/ kuì miè / 
Strokes

Example

As a Verb

(of a regime, etc) crumble and fall; collapse and perish

1
Jiù
旧
de
的
shèhuìzhìdù
社会制度
zhōngyú
终于
kuìmiè
溃灭
le
了
  
。

The old social system finally crumbled.