Russia doesn’t want North Korea to have nuclear weapons, but the response from officials in Moscow has been minimal because they know Russia isn’t one of Pyongyang’s targets.
Striking near Russia does not mark a new phase in North Korea’s missile and nuclear ambitions. The Sea of Japan, or the East Sea, is not far from Russia’s Vladivostok, so it’s far more likely that Sunday’s missile was just somewhat off target. It’s highly doubtful that North Korea would intentionally send a warning shot at Russia.
Russia is one of the few countries that has diplomatic relations with North Korea. While Russia and North Korea don’t have strong trade ties, they are building on their economic relationship.