South Korea on Monday expressed hopes for resumption of diplomacy between the U.S. and North Korea to ease animosities on the Korean Peninsula, as U.S. President Donald Trump's order to cut military exercises with South Korea caused concerns it might hurt the allies' readiness against North Korean threats. Trump cited his good relationship with North Korean leader Kim Jong Un for the decision, a likely bid to reengage with Kim, who views U.S.-South Korean military exercises as invasion rehearsals. But experts say the North Korean leader, now emboldened by his advancing nuclear arsenal and expanding military cooperation with Russia , won’t likely return to talks unless he is assured of serious U.S. concessions. The 11-day, summertime Ulchi Freedom Shield exercises began Monday morning as scheduled and it wasn’t known which parts of the training were being downsized. Trump's announcement baffled many in South Korea, a key U.S. ally in Asia where national security is a top priority due to threats from nuclear-armed North Korea. Trump orders military to ‘substantially reduce’ drills