First strike and Preventive war

First strike noun - The initial use of nuclear weapons to attack a country that also has nuclear weapons; considered feasible only when the attacker can destroy the other country's ability to retaliate.

Preventive war and first strike are semantically related. in tactic in warfare topic. In some cases you can use "Preventive war" instead a noun phrase "First strike".

First strike and preventive war are semantically related. Sometimes you can replace phrase "First strike" with "Preventive war", this phrases are similar.