Lieutenant colonel (United States) in the context of "509th Composite Group"

The United States Army War College (USAWC) is a U.S. Army staff college in Carlisle Barracks, Pennsylvania, with a Carlisle postal address, on the 500-acre (2 km) campus of the historic Carlisle Barracks. It provides graduate-level instruction to senior military officers, government officials, and civilians to prepare them for senior leadership assignments and responsibilities. Each year, a number of Army colonels and lieutenant colonels are considered by a board for admission. Approximately 800 students attend at any one time, half in a two-year-long distance learning program, and the other half in an on-campus, full-time resident program lasting ten months. Upon completion, the college grants its graduates a master's degree in Strategic Studies (MSS).

The Army War College is a split-functional institution. Emphasis is placed on research and students are also instructed in leadership, strategy, and joint-service/international operations. It is one of the senior service colleges including the Naval War College and the USAF Air War College. Additionally, the U.S. Department of Defense operates the National War College.

The Office of the Military Advisor to the Commonwealth Government (OMACG) was created in 1935 upon the initiative of President Manuel L. Quezon by the Philippine and American governments for the purposes of developing a system of national defense for the Commonwealth of the Philippines by 1946. OMACG's recommendations were adopted by the Philippine National Assembly in Commonwealth Act Number 1, the National Defense Act of 1935.

The Military Advisor to the Commonwealth Government was U.S. Major General Douglas MacArthur, who was assisted by Major Dwight Eisenhower and Major James Ord; along with four officers from the Philippine Department, under Major General Lucius Holbrook (1936–1938) and Major General Grunert (1940–1941), and retired Lieutenant Colonel Sidney L. Huff. and Major Fredreich Walter Seefeld ( U.S. Army Retired)

A colonel (/ˈkɜːrnəl/) in the United States Army, Marine Corps, Air Force and Space Force, is the most senior field-grade military officer rank, immediately above the rank of lieutenant colonel and just below the rank of brigadier general. Colonel is equivalent to the naval rank of captain in the other uniformed services. By law, an officer previously required at least 22 years of cumulative service and a minimum of three years as a lieutenant colonel before being promoted to colonel. With the signing of the National Defense Authorization Act of 2019 (NDAA 2019) Public Law 115 - 232, military services now have the authorization to directly commission new officers up to the rank of colonel. The pay grade for colonel is O-6.

When worn alone, the insignia of rank seen at right is worn centered on headgear and fatigue uniforms. When worn in pairs, the insignia is worn on the officer's left side while a mirror-image reverse version is worn on the right side, such that both of the eagles' heads face forward, to the wearer's front.

In the United States Army, Marine Corps, Air Force and Space Force, major is a field officer above the rank of captain and below the rank of lieutenant colonel. It is equivalent to the rank of lieutenant commander in the Navy and Coast Guard. Although lieutenant commanders are considered junior officers by their services, majors are senior officers.

The pay grade for the rank of major is O-4. The insignia for the rank consists of a golden oak leaf, with slight stylized differences between the versions of the different services. Promotion to the rank of major is governed by the Department of Defense policies derived from the Defense Officer Personnel Management Act of 1980.