North Korea fired more than 10 ballistic missiles toward the waters off its eastern coast, days after testing cruise missiles from a new warship and adding to global geopolitical risks that were already mounting after the U.S. and Israel attacked Iran.

State media KCNA, in a report dated March 15, said leader Kim Jong Un presided over a drill involving 12 600mm-caliber multiple rocket launchers and two artillery companies a day earlier. Kim said following the drill that the weapons are a means of “deterring war” but that North Korea would use them as means of a “massive, destructive strike” in response to provocation or an attack.

“As I have said several times, if this weapon is used, the opponent’s military infrastructure within its striking range can never survive,” Kim was quoted as saying by KCNA, adding the launch would show enemies the power of North Korea’s tactical nuclear weapons.