Early North Korean missiles used against Ukraine often disintegrated mid-flight, but recent versions show significant improvements, likely due to Russian assistance in enhancing their technical capabilities,

Russia’s S-400 air defense system is designed to track and destroy targets up to 250 miles away, raising concerns about its ability to counter U.S. stealth aircraft like the F-35 and B-21. -While Russia claims its S-400 and newer S-500 can detect stealth jets,