Correction (July 5, 2021 at 9:43 a.m. KST): This article has been updated to reflect that Wang Wenbin made his comments on June 30.

North Korean leader Kim Jong Un sent congratulatory greetings to Chinese leader Xi Jinping on Thursday for the 100th anniversary of the founding of China’s communist party, vowing to stand together with Beijing amid a “complicated international situation.”

Kim stressed that “hostile forces” are making futile attempts to deter China. Xi, in a speech on Thursday, emphasized that China will never allow other countries to “bully” Beijing, warning of countermeasures. China has routinely accused the U.S.