In order to improve its preparedness in the face of potential threats in simulated conditions of real war, the Iranian air force has started a large-scale drill in central part of the country on Thursday.

The military drill that named ‘Guardians of Velayat Sky-98, is being conducted over an area of 416,000 square kilometers in the central province of Semnan, simulating the Persian Gulf general area and the Strait of Hormuz.

ILKHA