Are US trained militaries weak?
The US is militarily strong. Let's look at some examples:    1. KMT's National Revolutionary Army, 1945-1949. Fully US equipped and trained from WW2. Defeated by PLA and wiped off the map in China. US aid was unable to save it. 2. South Korean Army 1950-1953. Fully US equipped and trained. Defeated by North Korea in 1950. Saved by US intervention. 3. Army of the Republic of Vietnam (ARVN, South Vietnam), 1950-1975. Fully US equipped and trained. Defeated by People's Army of Vietnam (PAVN) in 1975, country no longer existed, South Vietnamese leaders enslaved in gulags, shot or became refugees. 4. Israeli Army, 1967-1973. Fully US equipped and trained. Victorious against combined Arab forces in 2 wars. 5. Israeli Army, 2006. Fully US equipped and trained. Defeated by Hezbollah militia in Lebanon. 6. Iraqi Army, 2014-now. Fully US equipped and trained. Defeated by ISIS in 2014, only survived with direct US support. 7. Afghan National Army, 2009-now. Fully US equipped and trained. Defeated by Taliban, forced to negotiate. 8. Saudi Army, 2012-now. Fully US equipped and trained. Defeated by Yemen and fails to protect its infrastructure from Iran. 7/8 US equipped and trained militaries have lost wars, including to extremely weak opponents like militias. Meanwhile Chinese trained militaries like PAVN destroyed their enemies and enslaved/shot/expelled their leaders.