The Liberation Army of Preševo, Medveđa and Bujanovac was an Albanian militant insurgent group fighting for separation from the Federal Republic of Yugoslavia for three municipalities: Preševo, Medveđa, and Bujanovac, home to most of the Albanians in south Serbia, adjacent to Kosovo. Of the three municipalities, two have an ethnic Albanian majority, whilst Medveđa has a significant minority of them.
The National Liberation Army, also known as the Macedonian UÇK was an ethnic Albanian militant and separatist militia that operated in the Republic of Macedonia in 2001 and was closely associated with the Kosovo Liberation Army (KLA). Following the 2001 insurgency in Macedonia, it was disarmed through the Ohrid Framework Agreement, which gave greater rights and autonomy to the state's Macedonian Albanians.
The 2001 insurgency in the Republic of Macedonia was an armed conflict which began when the ethnic Albanian National Liberation Army (NLA) insurgent group, formed from veterans of the Kosovo War and Insurgency in the Preševo Valley, attacked Macedonian security forces at the end of January 2001, and ended with the Ohrid Agreement, signed on 13 August of that same year. There were also claims that the NLA ultimately wished to see Albanian-majority areas secede from the country, though high-ranking members of the group have denied this. The conflict lasted throughout most of the year, although overall casualties remained limited to several dozen individuals on either side, according to sources from both sides of the conflict. With it, the Yugoslav Wars had reached the Republic of Macedonia which had achieved peaceful independence from Yugoslavia in 1991.
The Albanian National Army is an Albanian paramilitary organization which operates in North Macedonia, Serbia and Kosovo. The group opposes the Ohrid Framework Agreement which ended the 2001 insurgency in Macedonia between members of the National Liberation Army and Macedonian security forces.
The Battle of Tetovo, was the largest engagement during the 2001 insurgency in the Republic of Macedonia, in which Macedonian security forces battled the National Liberation Army (NLA) for control of the city.
The Battle of Vaksince was a military engagement between the Macedonian security forces and Albanian insurgents belonging to the NLA, which was at the time launching a campaign of guerrilla attacks against facilities of the Macedonian Government, the Macedonian Police force, and the Macedonian Armed Forces.
The Vejce ambush, also known by Macedonians as the Vejce massacre, was carried out by the National Liberation Army against a Special Operations Regiment convoy near the village of Vejce during the 2001 insurgency in Macedonia. During the attack, eight soldiers were killed.
The 2015 Kumanovo clashes, also known as Operation Divo naselje, were series of shootouts which erupted during a raid between the Macedonian police and an armed group identifying itself as the National Liberation Army (NLA). They began on 9 May 2015 in the northern Macedonian town of Kumanovo. During the shootings, eight Macedonian policemen and 14 of the militants were killed, while 37 officers were wounded and hospitalized. The shooting ended on 10 May 2015, in an operation by the Macedonian police and armed forces, in which 30 militants were arrested and charged with terrorism-related charges by the Macedonian authorities.
The Karpalak ambush, referred to by Macedonians as the Karpalak massacre, was an attack carried out by the National Liberation Army (NLA) against a convoy of the Army of the Republic of Macedonia (ARM) near the village of Grupčin on 8 August 2001 during the 2001 insurgency in Macedonia. Ten members of the ARM's Military Reserve Force, including two officers, were killed at Karpalak and three others were wounded. The ambush was the single deadliest incident of the conflict. It was speculated that the ambush was carried out in retaliation for a Macedonian police raid in Skopje, the day before in which five NLA insurgents were killed.
Albanian rebels ambushed a convoy of the special police unit Lions near the village of Treboš on 11 November 2001. A group known as the Albanian National Army (ANA) claimed responsibility. The ambush occurred after the war of 2001 officially ended with the signing of the Ohrid Framework Agreement when members of the special Macedonian police forces were attacked on the road to Treboš where they were supposed to secure a mass grave, suspected of containing the bodies of 13 Macedonian civilians kidnapped by the NLA.
The Ljuboten clashes,, also referred to as the Ljubotenski Bacila massacre,, happened on 10 August, 2001, when a Macedonian Army truck convoy composed of reservists ran over a landmine near the village of Ljuboten, killing eight men. Immediately after the attack fighting between Albanian rebels and Macedonian forces erupted. The Macedonian government officially blamed the NLA for the attack. The leader of the NLA, Ali Ahmeti, did not confirm NLA involvement in planting the mines, suggested the devices might have been placed by government forces to prevent rebel crossings, and expressed his regret at the incident.
The Aračinovo crisis was a series of events triggered by the occupation of the village of Aračinovo, in the outskirts of the Macedonian capital Skopje, by the insurgent National Liberation Army (NLA) in June 2001 and the consequent attempts by the Macedonian army (ARM) to retake the settlement. The Macedonian attack resulted in a standoff with NATO, whose troops evacuated the besieged rebels after a ceasefire accord. The crisis is considered to be the turning point in the Macedonian war of 2001, and one of its most controversial incidents.
The battle of Raduša was part of the wider inter-ethnic conflict known as the Insurgency in the Republic of Macedonia between the Albanian NLA and Macedonian security forces concentrated near the border with Kosovo. The brunt of the fighting happened near the village of Raduša and Bojane villages that guard the roads to the Rašče water supply which supplies water to the capital city of Skopje.
Operation MH-1 was a Macedonian military operation with the goal to clear out the NLA rebels from the Skopska Crna Gora region all along the Macedonian border. The offensive started on March 28, 2001, and ended the next day.
During the 2001 insurgency in Macedonia, a raid was conducted by the Macedonian police against ethnic Albanian rebels in a suburb of Skopje on 7 August. The police killed the rebel group and captured their weapon supplies.
The National Liberation Army (NLA) committed an attack near the village of Brest on 9 March 2001 during the insurgency in Macedonia. The NLA ambushed a Macedonian convoy, after they were defeated and forced to withdraw by KFOR troops in the village of Tanuševci.
The Battle of Matejče was a military confrontation between the National Liberation Army (NLA) and the Macedonian Army in the village of Matejče during the 2001 insurgency in Macedonia. The NLA succeeded in capturing the village on 5 June 2001 and the Macedonian Army was forced to withdraw from Matejče. The Macedonian Army continued to shell Matejče until 11 June 2001.
The Battle of Slupčane was a military confrontation between the Macedonian security forces and Albanian insurgents belonging to the National Liberation Army (NLA), which at the time, was launching a campaign of guerrilla attacks against facilities of the Macedonian Government, the Macedonian Police force, and the Macedonian Armed Forces. The NLA was victorious, in part due to the withdrawal of Macedonian forces and suspension of all military operations in Kumanovo–Lipkovo region so that international officials could inspect the water supply.
The Battle of Nikuštak was a military engagement in 2001 between the National Liberation Army (NLA) and the Macedonian Army in the village of Nikuštak, Macedonia. Macedonian forces launched a large-scale offensive in Nikuštak on 27 June 2001.
Macedonia 
National Liberation Army 
Stojanče Angelov