Us military has had active demonstrations of the importance of advanced drone munitions FOR TEN YEARS NOW and completely dropped the ball.
It is clear that an organizational level the US military does not have infantry level short and medium-range drone capability like Ukraine does, and more importantly, like all of our enemies do.
It's not just a matter of the US military needing to do a bunch a weapons designs. Procurement politics can't close the drone capability gap.
Because the fundamental capability is cheap and flexible, whereas the entire Pentagon weapons procurement is big, expensive and inflexible
The US Marines are now functionally ineffective. The US cannot execute a marine invasion in the current military capabilities, not without taking publicly untenable losses
The US Navy still has deep water capability and can still exert strategic influence, but at a tactical level, which is in near shore/littoral arenas, they are now useless, and the political procurement process to make weapons to make them relevant again is the same problem. The infantry level one does, but it's even bigger and has even more organizational resistance