FILE - Russian President Vladimir Putin, left, and North Korea's leader Kim Jong Un exchange documents during a signing ceremony of the new partnership in Pyongyang, North Korea, on June 19, 2024. (Kristina Kormilitsyna, Sputnik, Kremlin Pool Photo via AP, File)

FILE - In this photo taken from video released by the Russian Defense Ministry on June 12, 2024, Lt. Gen. Igor Kolesnikov, head of the Russian Defense Ministry's department in charge of nuclear weapons, makes a statement about the joint Russian and Belarusian tactical nuclear weapons drills while standing in front of a Belarusian ground attack jet. (Russian Defense Ministry Press Service via AP, File)

FILE - In this photo taken from video released by the Russian Defense Ministry on June 13, 2024, Belarusian soldiers operate an Iskander ballistic missile launcher during joint Russian and Belarusian drills with tactical nuclear weapons. (Russian Defense Ministry Press Service via AP, File)

FILE - In this photo taken from video released by the Russian Defense Ministry on Monday, July 1, 2024, Russian soldiers fire from the BM-21 "Grad" self-propelled 122mm multiple rocket launcher in an undisclosed location in Ukraine. (Russian Defense Ministry Press Service via AP, File)

FILE - In this photo taken from video released by the Russian Defense Ministry on June 11, 2024, navy personnel take part in drills on board of the Kazan nuclear submarine en route to Cuba. (Russian Defense Ministry Press Service photo via AP, File)

FILE - Russian President Vladimir Putin and Defense Minister Andrei Belousov, background right, attend a ceremony at the Tomb of the Unknown Soldier, in Moscow, on June 22, 2024. (Sergei Guneyev, Sputnik, Kremlin Pool Photo via AP, File)

FILE - Soldiers stand next to a Russian RS-24 Yars ballistic missile parked along Tverskaya street prior to a rehearsal for the Victory Day military parade in Moscow, on Thursday, May 2, 2024. (AP Photo/Alexander Zemlianichenko, File)

FILE - In this photo released by the Russian Defense Ministry on Feb. 2, 2024, Russian troops load an Iskander missile onto a mobile launcher during drills at an undisclosed location in Russia. (Russian Defense Ministry Press Service via AP, File)