• Adm. Bradley Cooper emphasizes protecting civilian life in a memo.
• The memo calls for distinguishing between combatants and non-combatants.
• Cooper stresses commitment to the law of armed conflict.
• The message comes amid comments from Defense Secretary Pete Hegseth downplaying traditional rules of engagement.

This memo may indicate a pushback against recent comments downplaying traditional rules of engagement, suggesting a renewed focus on operational legitimacy and adherence to international law. The emphasis on protecting civilians could strengthen the US military's reputation and differentiate it from adversaries, which may enhance its operational effectiveness and legitimacy.