Its US MIC its most likly already developed and they developing for the stuff to replace that stuff like with NGAW program and ofc the whole *checks notes* um lets see:
Abrams X (autoloader with unmanned turret, prob next gen thermals, hard kill APS, next gen armor system that is classified and so on)
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Then Bradley replacement is either griffin III or redback (hard kill APS, 50mm autocannon, with ability to mount a 105mm turret on on the platform, and more classified shit.)
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Griffin III by general dynamics Hanwha Defense/Oshkosh redback
plus more there are talks about replacing Stryker or updating to Striker x standards
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Like if you think about it US gets multiple MIG-25 incidents where they get scared then develop shit that is lightyears away form the stuff that China or Russia has and all of the second you have a literal most technological advanced military in the world where even talks about in NGSW program with smart optics and I quote to be overpowering and unmatched in the field everywhere anytime anyplace. Ok sorry for the rant but if russia is getting their shit pushed in by stocks left form cold war like HIMARS MLRS and now recently used GLSBD ammo and ofc now with JDAMS making their way in there as well. What chance does Russia has if US gets boots on the ground with their toys and trained equipment.