PYONGYANG, July 5 -- The Democratic People's Republic of Korea has conducted an island landing drill with participation of its armed forces and top leader Kim Jong Un guided the drill, the country's official news agency KCNA reported Saturday.

The ground, naval, air and air defense forces of the Korean People's Army participated in the training, with the deployment of combatants, artillery pieces with varying calibers, combat ships, bombers and transport planes.

The drill field looked like an "active volcano" after Kim gave the order to start, said KCNA.

Kim said it was possible to strike deadly blows to the enemies if the attack time was proper and firepower was concentrated through "prompt, accurate and united actions."

After the drill, Kim reviewed combat ships aboard a warship and commended the success of the maneuver, saying it has met the requirements of the Juche-based war method, according to the KCNA report.

"History proves that it is impossible to protect the destiny of the country and its people unless the army is bolstered up," said Kim, underscoring the need to increase the country's military strength.

He also noted waters on the country's southwestern front were recently exposed to threat as the enemies fired shells into territorial waters of the DPRK, and warned should the enemies repeat the wrong choice, "he would make them regret bitterly for their action."

The DPRK and the Republic of Korea exchanged fire with several hundred rounds of shells falling into the sea across the western maritime border in late March this year.