Protection of Civilians in Military Operations Act This bill expands Department of Defense (DOD) reporting requirements for civilian casualties that result from U.S. military operations and implements other requirements to address and prevent such casualties. Specifically, the bill requires (1) coordination with the Department of State in responding to reports of civilian casualties resulting from military operations, (2) DOD to establish and maintain a database that preserves and organizes reports on investigations of such civilian casualties, and (3) DOD to add personnel to implement its policies relating to civilian casualties from military operations.