
A nuclear-powered United States aircraft carrier arrived Saturday in South Korea for a three-way exercise stepping up their military training to cope with North Korean threats that escalated with its alignment with Russia.
The arrival of the USS Theodore Roosevelt strike group in Busan came a day after South Korea summoned the Russian ambassador to protest a pact reached between Russian President Vladimir Putin and North Korean leader Kim Jong Un this week that pledges mutual defense assistance in the event of war. South Korea says the deal poses a threat to its security and warned that it could consider sending arms to Ukraine to help fight off the Russian invasion as a response — a move that would surely ruin its relations with Moscow.