U.S. President Joe Biden announced the new aid package, which includes long-range weapons to strengthen Ukraine's ability to hit Russian targets from safer distances, during President Volodymyr Zelensky's visit to Washington.Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, accused the U.S. of intensifying the war in Ukraine and pushing Europe toward the edge of nuclear war, according to Reuters. In a statement released by state news agency KCNA, Kim said: "The United States and the West should not dismiss or underestimate Russia's serious warning. Are they truly prepared to face the consequences of recklessly playing with fire against Russia, a nuclear superpower?"Russian President Vladimir Putin has repeatedly cautioned that Russia may use nuclear weapons if attacked, and he views any assault on Russia supported by a nuclear-armed nation as a collective strike.Kim also condemned the U.S.