Hotbed and War zone

Hotbed noun - A place or environment that favors the development of something.

War zone and hotbed are semantically related. in volatile situation topic. In some cases you can use "War zone" instead a noun "Hotbed".

War zone noun - A combat zone where military operations are coordinated (especially a designated area in international waters where the rights of neutrals are not respected by nations at war).

Hotbed and war zone are semantically related. Sometimes you can use "Hotbed" instead a noun phrase "War zone".