Known as the Armata Kombetare Shqiptare in Albanian, the 'AKSh', or more commonly known as 'ANA' in English are an insurgency group founded in 2001 and operating to present day in the Republic of Macedonia.
This organization is made up of ex-members of the 'National Liberation Army' of ethnic Albanians in Macedonia which contested various areas of northern Macedonia in part of forming a 'Greater Albania' similarly to the KLA in Kosovo.
The NLA had strong ties to the Kosovo Liberation Army at the time, which were funded primarily by Albanian crime lords with money, drugs and weapons. Similarly, the ANA is known to hold ties to members of the KLA who served during the Kosovo War or who have otherwise moved on to other Albanian insurgencies throughout the Balkans. The ANA's included.
To this respect we can assume they have brought their drug sponsors with them in order to procure funding for weapons and equipment.
Operationally, the organization seems most active in abducting, ambushing and torturing members of Macedonia's police force. Such as in a 2005 attack in the village of Vratnica where a police station was bombed with plastic explosive. The attack was attributed to a cell of the ANA under the command of Agim Krasniqi, a commander of about eighty militants based out of the Kondovo area.
The explosives themselves were thought to be prepared by a foreigner (supposedly a member of the KLA,) given suggestions members of Krasniqi's cell are too inexperienced with such a sophisticated piece of kit.
The Krasniqi cell has gained infamy in other ways as well, such as publicly threatening to shell the city of Skopje, the capital of Macedonia, via the media.
Beyond this, the ANA at large has reportedly been involved in intimidating voters, abducting non-combatants and engaging in acts of robbery.
They claim to have nearly 12,000 fighters, though this has not been substantiated.