What is one advantage of a two-man fighting hole?

One significant advantage of a two-man fighting hole is that while one Marine maintains watch for enemy movements or threats, the other can take a moment to rest. This arrangement enhances the overall effectiveness of the team by ensuring continuous vigilance while allowing for necessary rest periods. In a combat scenario, maintaining situational awareness is crucial, and having one member actively observing while the other recuperates helps sustain alertness over prolonged engagements. This teamwork aspect is vital for both individual and unit survival, contributing to a more strategic approach to defense or engagement.

The other options, although they have their merits, do not emphasize the operational readiness and resilience that come from resting while one Marine remains vigilant. The structure of a two-man fighting hole primarily supports sustained observation, which is critical in combat situations.