The DPRK's top leader Kim Jong Un holds a pair of binoculars as he organizes and guides a combined joint drill of the units under KPA Combined Units 572 and 630 in this undated photo released by the DPRK's Korean Central News Agency (KCNA) in Pyongyang November 23, 2014. [Photo/Agencies]

Top leader of the Democratic People's Republic of Korea (DPRK) Kim Jong Un has organized and guided a combined drill of the Korean People's Army, the country's official KCNA news agency reported on Sunday.

Kim watched the whole process of the exercise, addressed the shortcomings and indicated tasks.

He instructed all military units to rehearse under simulated conditions of a real war and be well prepared at all times, according to the KCNA.

To suit the nature of modern warfare and meet the requirements of Juche-based war methods, it is necessary to frequently conduct such joint military drills, Kim was quoted as saying in the dispatch.

Kim also called for strong measures to root out formalism which still exists in the army and stressed the need for commanding officers to study hard and improve their training methods.