Insurrection

A violent uprising or rebellion against an established government or authority. While not a major factor in World War II itself, insurrections played a role in various theaters, such as the Warsaw Uprising against Nazi occupation.

Insurgent

A member of an organized resistance or rebellion against an established government or occupying force. Insurgents often employed guerrilla tactics, sabotage, and propaganda to disrupt enemy operations and mobilize support for their cause.

Insurgency

An organized resistance or rebellion against an established government or occupying force. While not a major factor in World War II itself, insurgencies played a role in various theaters, such as the French Resistance against Nazi occupation.

Counter-Insurgency Operations

Military operations designed to combat and suppress rebellions or insurgencies. Used extensively during World War II against anti-colonial movements and resistance groups.