Burrows took a large collection of Time-Life photos during the operation. The most recognizable is a Pulitzer Prize winning photo, taken on Hill 400, showing wounded Gunnery Sergeant Jeremiah Purdie being guided by a Hospital Corpsman Darrell Hinde as he reaches out to Lance Corporal Paul Holland Mitchell who was also seriously wounded and waiting to be treated. Photo is called "Reaching Out" Shown in many special Time-Life issues. At the end of 1966 the 4th Marine Regiment was pulled out of the DMZ and sent south to participate in Operation Chinook around Huế. When that operation ended the battalion went into a rebuilding stage. On January 31, 1967 Operation Prairie II started. On February 27 L/3/4 and a tank platoon was involved in a battle near Hill 48 to save a recon team that ran into a PAVN Regiment. On the 28th other Marine companies including M/3/4 were brought in for ground operation. When the operation ended total casualties for both sides were put at 93 Marines killed, 483 wounded and the PAVN losses were put at 694 killed. Prairie II ended on March 18, but Operation Prairie III started the next day. The battalion was pulled back to regroup and rebuild. For the next couple of months the battalion worked Route 9 guarding lines near Cam Lo, The Rockpile and Camp Carroll, which was the largest concentration of artillery pieces in northern I Corps. July and parts of August it was time for the battalion to spend time in the "Barrel", Con Thien. On September 4 the Battalion was ambushed just south of Con Thien with heavy casualties. 3/4 was pulled back for rebuilding its manpower. Some of the other major Operations in 1967 were Operation Hickory (May 18 to May 28), Operation Kingfisher (July 16 to Oct 31) and Operation Kentucky near Con Thien in the western area of Leatherneck Square in the latter part of 1967 and in January 1968. Other operations the Battalion participated in 1968 and 1969 were Operation Lancaster II (Jan 21 to Nov 25, 1968), and Operation Robin (2–19 June) along Route 9 southeast of Khe Sanh. After November 6, 3/4 was the last infantry battalion of the 3rd Marine Division left in South Vietnam. On November 24, 1969, the battalion sailed from Vietnam to Okinawa. 1980s & 1990s The first Marine unit in combat in Panama during Operation Just Cause was