In a busy week of foreign policy developments, President Joe Biden and his top officials have engaged in tense exchanges with China, Russia and North Korea, all as the White House looks to bolster America’s historic alliances and push back against pressure from authoritarian regimes. Biden is juggling his commitment to diplomacy and multilateralism with his vow to push back on the world’s dictators, figures he and his allies argue former President Donald Trump did too little to rein in. Secretary of State Antony Blinken and Secretary of Defense Lloyd Austin traveled to Japan and South Korea this week, expressing shared concerns over Chinese and North Korean regional aggression. But the trip prompted threats from Pyongyang, which a senior administration official told Newsweek has not responded to any American diplomatic outreach for more than a year. Kim Yo Jong—sister and aide to dictator Kim Jong Un — issued a statement that read: “We take this opportunity to warn the new U.S. administration trying hard to give off powder smell in our land. “If it wants to sleep in peace for coming four years, it had better refrain from causing a stink at its first step,” Kim added. Combined with reports…