North Korea's Korea Stamp Corp. has released two new postage stamps: one commemorating the 65th anniversary of the North Korea-China Treaty of Friendship, Cooperation and Mutual Assistance (a 1961 mutual defense pact signed by founder Kim Il-sung and Chinese Premier Zhou Enlai), and another marking Chinese President Xi Jinping's June 8–9 state visit to Pyongyang — his first in seven years. The stamps describe the Kim Jong-un and Xi summit as "a historic occasion that opens a new era of friendship and cooperation." Both countries are expected to hold further commemorative events on July 11, the treaty's signing anniversary, with additional measures anticipated to deepen bilateral ties following Xi's emphasis on the occasion during the summit.