North Korea on Tuesday denounced top U.S. officials' joint opinion piece that touted "unprecedented" trilateral cooperation among South Korea, the United States and Japan as feats of U.S. President Joe Biden's Indo-Pacific diplomacy. In the piece published in The Washington Post last Monday, Secretary of State Antony Blinken, Defense Secretary Lloyd Austin and National Security Advisor Jake Sullivan highlighted "tremendous results" of Biden's policy strategy. They said the Indo-Pacific area's serious security challenges, such as North Korea's nuclear saber-rattling, have effects far beyond the region, and assessed the Camp David trilateral summit last year spurred "unprecedented" defense and economic cooperation among the U.S., South Korea and Japan. Calling the op-ed a "childish" scribble, North Korea accused the Biden administration of glossing over its hostile policy toward Pyongyang at a time when its term is coming to an end. "(The strengthening of the trilateral cooperation) has not brought benefit s to the two vassal forces, but rather the yoke of cannon fodder of a nuclear war that their peoples cannot avoid," the Korean Central News Agency (KCNA) said in a commentary. The report said the Biden administration's hostile policy against North Korea has intensified security jitters in the U.S. and made itself a "fixed target plate" that can be easily aimed at. "Our power will continuously evolve and there will be no limit in bolstering our military force," the KCNA said. Source: Yonhap News Agency