Right now, the US has too much of that. Wars against peer or near-peer enemies need less counter-insurgency operations and more heavy equipment.
The US has become used to operating in environments where air superiority was total, and secure base camps were possible. That's over.
The US Army takes this seriously. Read Parameters, the War College journal, which has many articles on this subject. Here are two.[1][2] It's a major argument within the US military.
There are some serious mismatches in preparation. The USMC has a great concept of a MAGTF - a Marine Air Ground Task Force, usually carried in an amphibious assault ship. This is great for COIN - the ship can go somewhere in a hurry, park offshore, and send out landing craft and air support, while acting as a mobile base. This works great against an enemy with nothing capable of attacking such a ship. Less well against an enemy with truck-mounted anti-ship missiles.
The Army has too many vehicles intended to resist improvised explosive devices, and not enough heavy artillery and tanks. The Army is also used to being able to set up rear area bases in the open, and fortified fire bases in hostile territory. Those now look like soft targets.
The USAF is used to being able to fly cargo planes such as C-130s into combat zones. This now looks suicidal where everybody has anti-aircraft missiles. Today, if it flies over a combat zone, it had better be able to dodge, jam, and fight. Or be expendable, like a drone.
One of the lessons of the Ukraine war for the Navy is that you can't bring naval vessels near a hostile shore any more. Not since the Moskva.
[1] https://press.armywarcollege.edu/parameters/vol46/iss4/3/
[2] https://press.armywarcollege.edu/parameters/vol47/iss1/13/