The United States and 10 allies say the military cooperation between Russia and North Korea flagrantly violates U.N. sanctions and has helped Moscow increase its missile strikes on Ukrainian cities

North Korea has become a crucial source of missiles, munitions and even soldiers for Russia’s war in Ukraine as the sanctions-defying alliance between the two countries intensifies, according to a report by 11 countries,

The missiles enabled Moscow to step up aerial attacks on civilian targets in Ukraine, they say.