Russian President Vladimir Putin, centre left, and Mongolian President Ukhnaagiin Khurelsukh attend their meeting at the Saaral Ordon Government Building in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, left and Mongolian President Ukhnaagiin Khurelsukh shake hands as they pose for photos prior to the Russian-Mongolian talks at the Saaral Ordon Government Building in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Kristina Kormilitsyna, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, left, and Mongolian President Ukhnaagiin Khurelsukh attend a meeting at the Saaral Ordon Government Building in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, centre left, and Mongolian President Ukhnaagiin Khurelsukh attend a welcome ceremony in Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, right, and Chairman of the State Great Hural (Parliament) of Mongolia Dashzegve Amarbayasgalan attend a meeting at the Government Palace in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, right, walks with Mongolian President Ukhnaagiin Khurelsukh, left, during a welcoming ceremony at Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Kristina Kormilitsyna, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, right, walks with Mongolian President Ukhnaagiin Khurelsukh, left, during welcoming ceremony at Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Sofya Sandurskaya, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, on carpet front right, and Mongolian President Ukhnaagiin Khurelsukh, on carpet front left, attend a wreath-laying ceremony at the monument to Soviet Marshal Zhukov in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin speaks during an event marking the 85th anniversary of the joint victory of the Soviet and Mongolian armed forces over the Japanese militarists on the Khalkhin Gol River, in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Police and security officers prevent members of the "No War" group from holding up a Ukrainian flag during the visit of Russian President Vladimir Putin in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (AP Photo/Ganbat Namjilsangarav)

Russian President Vladimir Putin, right, and Mongolian President Ukhnaagiin Khurelsukh attend a welcome ceremony in Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin and Mongolian President Ukhnaagiin Khurelsukh shake hands as they pose for photos prior to the Russian-Mongolian talks at the Saaral Ordon Government Building in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Sofia Sandurskaya, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, right, walks with Mongolian President Ukhnaagiin Khurelsukh, left, during welcoming ceremony at Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Kristina Kormilitsyna, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin and Mongolian President Ukhnaagiin Khurelsukh, right, attend a welcome ceremony in Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin attends a signing ceremony following the Russian-Mongolian talks at the Government Palace in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Sofia Sandurskaya, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin and Mongolian President Ukhnaagiin Khurelsukh, left, attend a welcome ceremony in Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, right, and Mongolian President Ukhnaagiin Khurelsukh attend a welcoming ceremony at Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Russian President Vladimir Putin, center left, and Mongolian President Ukhnaagiin Khurelsukh, center right, attend a welcome ceremony in Sukhbaatar Square in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (Vyacheslav Prokofyev, Sputnik, Kremlin Pool Photo via AP)

Police and security officers prevent members of the "No War" group from holding up a Ukrainian flag during the visit of Russian President Vladimir Putin in Ulaanbaatar, Mongolia, Tuesday, Sept. 3, 2024. (AP Photo/Ganbat Namjilsangarav)