North Korea has a bunch they're willing to sell. Russia is buying already so get 'em while they're hot.
I have been vaguely watching the Ukraine conflict over the past few years. From my distant and zero experience observations, it seems like missiles are extremely effective BUT also extremely limited. So you blow up that one building or SAM you targeted. Well done. What about the other 10,000 static targets? What about the guys with FPV drones and shoulder-launched anti-air now inside the rubble of the building you just destroyed? Send another XX-million USD missile to blow up the building you already blew up?
Feels like a determined adversary who is not easily cowed with a quick bit of "shock and awe" and armed with cheap, mobile winged/quad drones and man-portable guided anti-air/-tank missiles has totally changed the equation. Expensive limited missiles/planes/tanks/ships in smaller numbers seem kinda limited in their ability to get results in today's battlefield where there are FPV drones literally at every turn, and can be operated from literally a hole in the ground 15km away by people who aren't about to easily surrender.
It feels somewhat like the US doctrine has been to start with a "hit 'em hard" opening salvo of cruise/ballistic missiles and rockets etc and hope for immediate surrender. So far the lesson from Ukraine and Iran seems to be expect a big wave first attack or two and if you survive that initial push then suddenly the big super-power has no more cards left to play and it's down to men on the ground with hand-held weapons and drones. I wonder if people will look back at this era as a "WW1 moment" where the old ways of battle suddenly looked hopelessly out of date.
It depends on the specific nature of the conflict. Not every conflict is about control over land; Iran is a perfect example. Their missiles provide a credible threat against globally critical infrastructure, which gives them a way to retaliate without committing ground troops. And their drone strikes are using heavier one-way drones, not FPVs, which wouldn’t make a dent in oil infrastructure or tanker ships.
The current US force configuration was designed to fight quick wars against opponents who mostly can’t fight back. It’s a military built to play “global police,” and for a short while this was probably the correct configuration.
Building a military that stands ready to fight any kind of war is probably impossible—it would be too expensive. You need to look at the biggest threats and optimize for those conflicts. The problem that the US now faces is that rival nations have optimized for defense against its particular style of maneuver warfare with heavy air bombardment. Air defense (not missile defense) is better and cheaper than ever.
Russian missiles have been mostly useless in the Ukrainian war. They are overwhelmingly used against civilian targets as a means of intimidation.