Pyongyang: A new defense treaty signed by the leaders of North Korea and Russia in June has officially come into force this week following the exchange of ratification instruments between the two nations, state media reported Thursday. The comprehensive strategic partnership treaty went into effect on December 4, as stated by the Korean Central News Agency (KCNA). According to Yonhap News Agency, North Korean leader Kim Jong-un and Russian President Vladimir Putin signed the partnership treaty in June in Pyongyang, which includes a mutual defense clause. This development marks a significant step as the two nations continue to strengthen their military ties, with North Korea reportedly sending thousands of troops to Russia in support of Moscow's ongoing conflict with Ukraine. The treaty is intended to serve as a legal framework to elevate bilateral relations to a new strategic level, according to North Korea. The KCNA emphasized that the agreement will be a "powerful security device" promoting the welfare o f both nations' peoples, easing regional tensions, and ensuring international strategic stability. Furthermore, it is seen as a mechanism to foster a multi-polarized world order that is free from domination and subjugation. The treaty also stipulates the provision of military assistance "without delay" if either nation is attacked. In November, North Korea ratified the treaty through a decree signed by Kim Jong-un. Russian President Putin also enacted the treaty into law after its ratification by both the upper and lower houses of the Russian parliament.