Open this photo in gallery: Russian President Vladimir Putin and North Korea’s leader Kim Jong Un examine a launch pad during their meeting at the Vostochny cosmodrome outside the city of Tsiolkovsky, Russia, on Sept. 13, 2023.Mikhail Metzel/The Associated Press North Korea may be able to boost Russia’s supply of artillery munitions for the war in Ukraine, but that is not likely to make a big difference, the top American military officer said as he arrived in Norway for NATO meetings that began Saturday and will focus in part on the conflict. U.S. Army Gen. Mark Milley, chairman of the…