Havoc and War zone

Havoc noun - A state in which everything is out of order.

War zone and havoc are semantically related. In some cases you can use "War zone" instead a noun "Havoc".

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).

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