Azerbaijani armed forces have liberated 2,000 hectares of land from occupants during the April clashes, military sources told on Wednesday.

According to the sources, the Azerbaijani army also regained control over some strategic heights, which allow to keep a large part of the territory of Nagorno-Karabakh under surveillance.

Armenian President Serzh Sargsyan told reporters on May 17 that the country’s armed forces lost 800hectares of the 800,000ha territory which they hold for security reasons, adding that the lost territories were not of any strategic or tactical importance.

The Nagorno-Karabakh conflict entered its modern phase when the Armenian SRR made territorial claims against the Azerbaijani SSR in 1988.

A fierce war broke out between Azerbaijan and Armenia over the Nagorno-Karabakh region of Azerbaijan. As a result of the war, Armenian armed forces occupied some 20 percent of Azerbaijani territory which includes Nagorno-Karabakh and seven adjacent districts (Lachin, Kalbajar, Aghdam, Fuzuli, Jabrayil, Gubadli and Zangilan), and over a million Azerbaijanis became refugees and internally displaced people.

The military operations finally came to an end when Azerbaijan and Armenia signed a ceasefire agreement in Bishkek in 1994.

Dealing with the settlement of the Nagorno-Karabakh conflict is the OSCE Minsk Group, which was created after the meeting of the OSCE Ministerial Council in Helsinki on 24 March 1992. The Group’s members include Azerbaijan, Armenia, Russia, the United States, France, Italy, Germany, Turkey, Belarus, Finland and Sweden.

Besides, the OSCE Minsk Group has a co-chairmanship institution, comprised of Russian, US and French co-chairs, which began operating in 1996.

Resolutions 822, 853, 874 and 884 of the UN Security Council, which were passed in short intervals in 1993, and other resolutions adopted by the UN General Assembly, PACE, OSCE, OIC, and other organizations require Armenia to unconditionally withdraw its troops from Nagorno-Karabakh.