According to Janes, the US Air Force will receive 400 stealth cruise missiles, specifically the AGM-158B JASSM-ER, which can reach Russian territory.
The article explains that the contract with Lockheed Martin stipulates that the missiles will be produced by mid-2025. It also mentions that the use of cruise missiles such as the AGM-158B JASSM-ER and AGM-86C CALCM will allow for striking major strategic Russian targets in the Arctic and parts of Siberia.
In this context, Ukrainian company Defense Express reported in the summer of 2020 that the missile armament of American B-52 Stratofortress strategic bombers enables them to strike targets within Russia without entering airspace protected by S-400 missile defense batteries.