disintegration

US /ˌdɪs.ɪn.t̬əˈɡreɪ.ʃən/
UK /ˌdɪs.ɪn.t̬əˈɡreɪ.ʃən/
1.

sự tan rã

the process of something becoming weaker or being destroyed by breaking into smaller parts or pieces:

:
These terrorists are trying to bring about a disintegration of the state.