South Korea said it would take “phased measures” in response to the deepening military cooperation between North Korea and Russia, the Yonhap news agency reported on Tuesday. On Friday, Seoul said that North Korea had decided to send 12,000 troops to support Russian forces fighting in Ukraine and that 1,500 of them have already been deployed. The National Security Council (NSC) in Seoul convened in light of this development, deeming it a “significant security threat” to both South Korea and the international community, according to Yonhap. The NSC emphasized that this cooperation represents a …