North Korean leader Kim Jong-un has mentioned the possibility of a war breaking out on the Korean peninsula in 2015, it was revealed Tuesday. According to a source, Kim told military commanders earlier this year that an "armed confrontation could take place on the Korean peninsula in 2015" and ordered them to stock up on strategic supplies and remain combat ready.

The comments were made at about the same time that Kim spoke about improving relations with South Korea during his New Year's address.

At a loyalty rally in Pyongyang on Feb. 25, Kim also spoke about an "all-out war with the enemy in the name of revolution and final victory." Last year, Kim told key officials his aim of "reunification through force within three years."

The source said, "Since he came to power in late 2011, Kim Jong-un has often said that his aim is reunification 'through force' and that he would personally drive a tank and advance into Seoul."

Intelligence officials here were given the information and are monitoring possible provocations.

"Even amid its peace gestures, North Korea continues to harbor ambitions of reunification through force," a government official said. "We're doing everything to prepare against additional provocations including a missile launch and fourth nuclear test."

The year 2015 marks the 70th anniversary of North Korea's Workers Party and the division of the Korean peninsula.