rearguard
/ˈɹɪəɹˌɡɑɹd/noun
High School
1
The rearmost part of a force, especially a detachment of troops that protect the rear of a retreating force.
2
The defence, collectively the defenders.
The rearmost part of a force, especially a detachment of troops that protect the rear of a retreating force.
The defence, collectively the defenders.