The following is the May 21, 2024, In Focus Congressional Research Service report, Russia’s Nuclear Weapons.
From the report
Russia presents an “acute threat” to the United States and its allies, according to the 2022 National Defense Strategy. The 2022 Nuclear Posture Review, a Biden Administration review of U.S. nuclear policy, states:
Russia remains the U.S. rival with the most capable and diverse nuclear forces. Today it is unique in the combination of strategic and non-strategic nuclear...
https://news.usni.org/2024/05/29/report-to-congress-on-russias-nuclear-weapons