1st Battalion, 25th Marines turned over its positions in and around Fallujah to another Reserve battalion, 1st Battalion, 24th Marines. Building on the improvements that 1/25 had made to Fallujah's infrastructure and community relations after Operation al Fajr, 1/24 also borrowed the concept of "community policing" from the successful Iraq tour that its sister battalion, 2/24, had employed in the Triangle of Death years earlier. Using aggressive patrolling and intelligence operations that transformed information regarding tribal activities and relationships into "actionable intelligence," 1/24 made major contributions to what has become known as the "Sunni Awakening," or the 180-degree transition of many Sunni tribes in Al Anbar Governorate from supporting the insurgents to supporting the American-led effort in Iraq.