The U.S. military has very clear considerations for the operational use of the B-21 Raider bomber.

The US Air Force has positioned B-21 bomber as the backbone of the future bomber force and the core of the air long-range strike formation, which highlights the characteristics of the use of "Raider" to assume the operational responsibility of deep strike.

The US military envisages that B-21 bombers will form a "global strike task force" with F-22 and F-35 stealth fighters, which can maneuver to any location in the world within 24 hours and carry out "decapitation" strikes on nodes such as important command, early warning, communication and air defense of operational opponents.

As a new generation of main air combat platform of the US Air Force, the B-21 bomber will become an important supporting combat force of the US military's "penetrating air control" operational concept.

The so-called "penetration" means to break through the other side's air defense system and carry out precision strikes in the airspace close to the target. In this operational concept, the B-21 bomber will rely on its strong stealth performance and penetration ability to break into the opponent's deep area and carry out precision strikes on various important targets.

In terms of strike means, the B-21 bomber has two types of strike means, conventional strike and nuclear strike.

Thanks to its large and flexible payload bay, it can carry B-61Mod12 tactical nuclear warheads and other multi-warhead cruise missiles. Therefore, the B-21 bomber will become one of the important pillars of the United States' "trinity" nuclear strike force after replacing the current three strategic bombers in service in the future.

In terms of attack mode, the B-21 bomber is compatible with two combat modes: manned and manned/unmanned cooperation.

In addition to manned combat with manned stealth fighter formation assault and its own solo assault, B-21 bombers also have the command and control capability of drones, that is, they can carry out manned/unmanned cooperative combat with the CCA drones and "air wingman" drones being developed by the US Air Force in the combat area.

In addition, the B-21 bomber adopts an open system architecture, relies on strong information network capabilities, and is incorporated into the U.S. military's "joint global command and control system", which can cooperate with information warfare forces such as network warfare and electronic warfare, and can form a joint fire system with other man-machine, unmanned aerial vehicles, satellites, etc., to strike high-value targets of adversaries. In this case, the B-21 bomber will become an important multi-function node in the future U.S. joint combat system.