Operation Hickory was an operation conducted by the United States Marine Corps

United States Marine Corps

The United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...

 in the area around Con Thien

Con Thien

Con Thien , was a United States Marine Corps combat base located near the Vietnamese Demilitarized Zone about 3 km from North Vietnam...

, South Vietnam

South Vietnam

South Vietnam was a state which governed southern Vietnam until 1975. It received international recognition in 1950 as the "State of Vietnam" and later as the "Republic of Vietnam" . Its capital was Saigon...

 known as Leatherneck Square

Leatherneck Square

Leatherneck Square was an area just south of the Vietnamese DMZ.It was cornered by Con Thien to Gio Linh in the north, about wide and from Dong Ha to Cam Lo in the south. The length of this square was about 9 miles ....

 from May 18, 1967 until May 28, 1967. During the course of the fighting Marine casualties were 142 killed 896 wounded while the NVA suffered 304 killed, unknown number wounded and 30 taken as prisoner of war.

Order of battle

United States Marine Corps

• 1st Battalion 9th Marines
  1st Battalion 9th Marines
  The 1st Battalion 9th Marines is an infantry battalion of the United States Marine Corps. Formed during World War I, it served until the mid-1990s when it was deactivated to make room for one of three light armor reconnaissance battalions...
  
  
• 2nd Battalion 9th Marines
  2nd Battalion 9th Marines
  The 2nd Battalion, 9th Marines is an infantry battalion of the United States Marine Corps. Formed during World War I, the unit played an instrumental role in the defeat of the Japanese forces in the Battles of Guam and Iwo Jima during the World War II...
  
  
• 2nd Battalion 26th Marines
• 3rd Battalion 4th Marines
  3rd Battalion 4th Marines
  3rd Battalion, 4th Marines is an infantry battalion of the United States Marine Corps. Nicknamed "Thundering Third" it is known within the battalion as "Darkside" and the radio callsigns of the command and staff reflect this moniker. They are based at the Marine Corps Air Ground Combat Center...
  
  
• 1st Battalion 3rd Marines
  1st Battalion 3rd Marines
  1st Battalion, 3rd Marines is an infantry battalion in the United States Marine Corps based out of Marine Corps Base Hawaii. Nicknamed the "Lava Dogs", the battalion consists of approximately 800 Marines and Sailors and falls under the command of the 3rd Marine Regiment of the 3rd Marine...
  
  

North Vietnamese

• 324B Division