Which antibiotic is given to casualties with open combat wounds?

Moxifloxacin is an appropriate choice for casualties with open combat wounds due to its broad-spectrum antibiotic properties, which cover a variety of bacterial pathogens that are commonly associated with such wounds. It is particularly effective against both aerobic and anaerobic bacteria, making it suitable for treating infections that may arise from combat trauma.

In combat scenarios, there is a risk of exposure to resistant bacteria, and moxifloxacin's efficacy in treating certain resistant strains adds to its suitability. Additionally, it can be administered orally, which is beneficial in field situations where intravenous access may be challenging.

When considering the nature of open combat wounds, which can be contaminated with various bacteria, having an antibiotic that effectively targets multiple organisms is critical for preventing infection. Therefore, moxifloxacin stands out as the correct choice for managing patients with open wounds sustained during combat operations.