Biological attack and Warfare

Biological attack noun - The use of bacteria or viruses or toxins to destroy men and animals or food.

Warfare and biological attack are semantically related. In some cases you can use "Warfare" instead a noun phrase "Biological attack".

Warfare noun - A lack of agreement or harmony.

Biological attack and warfare are semantically related. Sometimes you can replace phrase "Biological attack" with "Warfare", this terms are similar.