Final answer:
Construction Battalions (CBs) can carry out construction projects without approval from higher authority under the laws of armed conflict.
Step-by-step explanation:
Under the laws of armed conflict, Construction Battalions (CBs) can carry out construction projects without approval from higher authority. CBs are specialized units within the US Navy that provide construction, engineering, and infrastructure support during times of war and humanitarian operations. These battalions play a crucial role in establishing temporary bases, building facilities, and maintaining military infrastructure in conflict zones.