In one of the most uncomfortable lessons to come out of Red Flag 2017, a stealth fighter that could “look first” and “shoot first” still found itself dragged into a close-in mess it was built to avoid. The arrangement was easy; insert F-35s into a high-end training scenario and permit expert F-16 aggressors to seek out gaps. Instead of a judgment against the Lightning II, this led to a lesson that tricks can produce issues physics can already cause.
Red Flag is meant to reveal such seams. During tests in Nellis Air Force Base, the F-35 proved the perils of low observability and sensor fusion in beyond-visual-range combat, with the ratio of exchange frequently being 20:1 in its favour during sections of the exercise. However, the same training that confirmed the long-range capabilities of the jet also revealed another form of threat: that of several assailants working in harmony of geometry and timing to compel the F-35 to respond to attack instead of making a decision.
What was simulated to make the idea of “swarm” work is not magic, it was simply the pressure on the depth of the magazine on the F-35, and its capacity to absorb multiple threats collapsing in different directions. When stealthy, the F-35 has four missiles that are AIM-120-class equipped internally. That is not a small number, yet it is easily finite when the opposing party is ready to compromise aircraft location, time, and angles to cause shots to occur and ensure that the F-35 responds. When the F-35 is forced into the merge, the battle changes to less of who spotted who, and more about who can survive the geometry, control their energy and retain situational awareness when engaged in combat in the airspace with multiple aircraft. The F-16 agility and agility skill set of the pilot may be more significant than the F-35 signature benefits in that regime.
One important technical factor acting here is that stealth makes no difference in aerodynamics. A multi-role mission set was considered as a primary function of the F-35 and optimized its single-engine design and control authority rather than turn performance. During training, aggressors took advantage of the fact that, once they remained alive long enough to compress distance – once they have forced missile usage – the Lightning II could be placed in a tight, time-sensitive defensive situation. Such a saturation issue grows rapidly with additional aircraft, even with less survivable aircraft (per aircraft) than a fifth-generation counterpart. Networking and command-and-control are meant to ensure that restrains such compression to never occur.
Contemporary aerial warfare is turning into an information battle, with the swarm issue essentially being a coordination issue. In case, historically, the junction of tactic data links was to disseminate a larger picture without each aircraft radiating. An example of this is Link 16, which was developed as a result of the requirement to transmit an AWACS-quality image – one that is commonly defined as a radar picture at a distance of 300 miles – to fighters to enable them to coordinate intercepts without losing their tactical discipline. Link 16 is today multi-platform which is significant since it is the awareness of sharing and rapid tasking over more nodes, rather than just the fighter at the tip, which is the best counter to multi-axis pressure.
The trend of the Air Force to autonomous teammates is expanding the same reasoning. In early 2026, the service focused on certifying the Autonomy Government Reference Architecture on several platforms offered by vendors as part of the Collaborative Combat Aircraft initiative. Decoupling is the engineering aspect: software mission autonomy can be moved between airframes, allowing a more rapid exploration of “how to fight” when the threat changes. Practically, any additional sensing, jamming and even carrying of weapons can be shared by manned-unmanned teams, allowing the force to absorb or thwart the type of saturation geometry aggressors employed to pursue merges.
The final point that What Red Flag vignette made is that the benefits of the fifth generation are real, yet not automatic. The F-35 performs optimally when its stealth, sensors and networked support maintain the engagement with ranges and timelines that allow first detection and first shot to be effective. Compression is something that can be imposed by an opponent, due to numbers, geometry, or clever coordination, and it places the fight in the form of a stress test of magazine depth, decision-speed, and the robustness of the greater system that the F-35 is reliant on to ensure that the merge actually occurs.
