
The 1st Mountain Division was a West German mountain infantry formation. It was part of the II Corps of the Bundeswehr. In the wake of military restructuring brought about by the end of the Cold War, the 1st Mountain Division was disbanded in 2001.

The 2nd Guards Tatsinskaya Tank Corps was a Red Army tank corps that saw service during World War II on the Eastern Front of Europe. The unit's most notable moment was in the raid on Tatsinskaya during Operation Little Saturn and the Nemmersdorf massacre, both of which occurred during World War II. After the war, it continued to serve with the Soviet occupation forces in Central Europe. It was originally the 24th Tank Corps. The unit had approximately the same size and combat power as a Wehrmacht Panzer Division, and less than a British Armored Division had during World War II.

The 2nd Guards Tatsinskaya Tank Corps was a Red Army tank corps that saw service during World War II on the Eastern Front of Europe. The unit's most notable moment was in the raid on Tatsinskaya during Operation Little Saturn and the Nemmersdorf massacre, both of which occurred during World War II. After the war, it continued to serve with the Soviet occupation forces in Central Europe. It was originally the 24th Tank Corps. The unit had approximately the same size and combat power as a Wehrmacht Panzer Division, and less than a British Armored Division had during World War II.

The 5th Armoured Division was a West German armored formation. It was part of the III Corps of the Bundeswehr, which also incorporated in 1985 the 2nd Panzergrenadier Division and 12th Panzer Division. III Corps was part of NATO's Central Army Group (CENTAG), along with the Bundeswehr's II Corps and the American V and VII Corps. Headquarters in 1985 was at Diez/Lahn, with subordinate brigades at Wetzlar, Neustadt/Marburg and Koblenz.

8 Squadron was a South African Air Force squadron during World War II and was again active between 1951 and 2001. During this second period, it was designated at different times as either a Citizen Force or Permanent Force squadron and was disbanded on 31 March 2001.

The 11th Carabinieri Mechanized Brigade was the Carabinieri formation, established in 1963 and disestablished in 2001, dedicated to the performance of military duties, the support to Territorial Organization, the participation in civil protection operations and to ensure the emergency reserve for the General Command.

The 41st Guards Rocket Division was a division of the Soviet and Russian Strategic Rocket Forces, active from 1961 to 2001.

The 90th Guards Tank Division was a division of the Soviet Army, and then of the Russian Ground Forces.

The 632nd Armor was an armored regiment of the Wisconsin Army National Guard from 1963 until 2001. A parent regiment under the Combat Arms Regimental System and U.S. Army Regimental System, the 632nd Armor was represented in the Wisconsin Army National Guard by the 1st and 2nd Battalions between 1963 and 1967. The 2nd Battalion was eliminated in a 1967 reorganization, while the 1st Battalion continued in existence until 2001.

The Danish Life Regiment was an infantry regiment of the Royal Danish Army. On 1 January 2001 it was merged with Sjællandske Livregiment, into Gardehusarregimentet.

The Islamic Defence Force of Afghanistan is the army and air force of Afghanistan of the Taliban-ruled Islamic Emirate of Afghanistan. It was first existed between 1997 and 2001 and re-raised from 15 August 2021, it is maintaining the defence and security issues of the Taliban-ruled Islamic Emirate of Afghanistan.

Jihad of Construction or Construction Jihad, or simply Jihad was one of Organizations of the Iranian Revolution. The organization began as a movement of volunteers to help with the 1979 harvest, but soon was institutionalized and took on a broader, more developmental role in the countryside. It was involved with road building, piped water, electrification, clinics, schools, and irrigation canals. It also provides "extension services, seeds, loans," etc. to small farmers.

Naval Computer and Telecommunications Command (COMNAVCOMTELCOM) was located at the intersection of Massachusetts Avenue and Nebraska Avenue within Nebraska Avenue Complex in Washington, D.C.

No. 2 Squadron RNZAF was a squadron of the Royal New Zealand Air Force (RNZAF). It was formed in 1930 as part of the Territorial Air Force with the main headquarters at Wellington and shadow flights at New Plymouth and Wanganui. Squadron personnel conducted their annual flying at RNZAF Base Wigram. In 1937 the Territorial Squadrons were re-organised and No. 2 Squadron became the Wellington Territorial Squadron.
No. 75 Squadron RNZAF was an air combat squadron of the Royal New Zealand Air Force. It was formed from the RAF's World War II bomber squadron, No. 75 Squadron, which had been initially equipped by the New Zealand government and was largely manned by New Zealanders. The squadron was created when, in a unique gesture, the squadron number, colours and battle honours were transferred to the RNZAF in 1946. It had flown more sorties and suffered more casualties than any other in the European theatre.

The Northern Alliance, officially known as the United Islamic Front for the Salvation of Afghanistan, was a military alliance of rebel groups that operated between late 1996 to 2001 after the Islamic Emirate of Afghanistan (Taliban) took over Kabul. The United Front was originally assembled by key leaders of the Islamic State of Afghanistan, particularly president Burhanuddin Rabbani and former Defense Minister Ahmad Shah Massoud. Initially it included mostly Tajiks but by 2000, leaders of other ethnic groups had joined the Northern Alliance. This included Karim Khalili, Abdul Rashid Dostum, Abdullah Abdullah, Mohammad Mohaqiq, Abdul Qadir, Asif Mohseni, Amrullah Saleh and others.

The San Antonio Air Logistics Center is a former air depot of the United States Air Force located alongside Kelly Air Force Base. It was closed as part of the 1995 Base Realignment and Closure Commission.

The Schleswig Regiment of Foot is a Royal Danish Army infantry regiment. On 1 January 2001 it was merged with the Queen's Life Regiment, into the Prince's Life Regiment. In 2018 it was announced that the regiment would be reestablished on 1 January 2019, as a light infantry battalion.

The Volga Military District (PriVO) was a military district of the Soviet Union and the Russian Federation that existed from 1918 to 1989 and 1992 to 2001.

The Zealand Life Regiment was a Royal Danish Army infantry regiment. On 1 January 2001 it was disbanded and amalgamated into the Guard Hussar Regiment, which was moved from Næstved to Slagelse.