TRIPOLI, May 7 (Xinhua) -- Libya's eastern-based Army Commander, General Khalifa Haftar, on Monday said the army is a "regular force that does not belong to a certain individual or a tribe."

Haftar made his remarks during a large military parade in the eastern city of Benghazi, celebrating the fourth anniversary of the army's operation "Dignity," which was launched to fight extremist groups in Benghazi.

"I congratulate our people and army for the fourth anniversary of the Dignity revolution that defeated terrorism and restored prestige to Libya and hope of reconstruction," Haftar said during the ceremony, which included military demonstrations.

"This army represents a regular force that does not belong to a person, a city or a tribe. It is the army of all Libyans. It defends them their interests. Your army has faced a brutal barbaric project and proved to the world that the Libyan people do not surrender, submit or despair," Haftar said.

In May 2014, Haftar's army launched the military operation "Dignity" to fight against terrorist groups in Benghazi.

Haftar announced last year the taking over of Benghazi and expelling of the terrorist groups, and now he is leading a military offensive against terrorist groups in the eastern city of Darna.

"Only the city of Darna remains (out of control) in eastern Libya, for which peace efforts have lasted for three years in order to avoid military actions in residential areas," Haftar said.

Since 2015, Darna has been besieged by the army who demanded the armed group of the Shura Council of Mujahideen of Darna to leave the city. The army accuses the group of being loyal to al-Qaida.