Complex sentence: Entomological (insect) warfare is also considered a type of biologicas may be employed in various ways to gain a strategic or tactical advantage over an adversary, either by threats or by actual deployments.
Split into simpler sentences: Entomological (insect) warfare is also considered a type of biological weapon. Biological weapons may be employed in various ways to gain a strategic or tactical advantage over an adversary, either by threats or by actual deployments.