text: Building a stealth plane is a lot of money. And apparently it pays off. For why, then, do we need to fence the same "stealth" SU-57? Work on the creation of an air defense system is also not a cheap pleasure. It is necessary to create a sufficiently anti-jamming complex, otherwise they will simply be put out of action by means of electronic warfare. And the enemy will try to do it, as he did during the first Gulf War, when he created such a level of interference that he jammed all the enemy's radar assets. At first we did not pay attention to this, for which we received a "slap in the face" during the corresponding teaching. which caused Lemansky's untimely death.