NATO Secretary General Mark Rutte warned Pyongyang and Moscow on Monday against sending North Korean soldiers to fight in the Ukraine war. North Korea deploying soldiers to fight with Russia in North Korea “would mark a significant escalation,” Rutte said on X after talks with South Korean President Yoon Suk Yeol. The two spoke by phone about the close relationship between South Korea and the Western military alliance, Rutte said, noting their cooperation in the defence industry and their “interconnected security.” South Korean President Yoon has described North Korea’s cooperation with Russia…