Ahead of U.S.-South Korean military drills, North Korean TV says the U.S. will be "held accountable for igniting war."

"We have cutting-edge attack methods to beat up the U.S. mainland at anytime and from anywhere. Also we have diligently developed and deployed Juche (self-reliant) weapons in the era of the Workers' Party of Korea, which enables us to fire strong artilleries," North Korean TV said.

"If a war breaks out on the Korean peninsula, the U.S. will be held accountable for igniting the war by mobilizing their massive strategic means and war hardware here, regardless of who mounted a preemptive attack."