system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why in the military do some people get the best medical care in the country at places like Walter Reed while other military personnel and veterans get awful horrible care at VA hospitals?
gpt
A lot has to do with where and when your injured.

Active duty and in combat: If it's sever enough you'll go to Walter Reed, otherwise you'll be in a different military hospital, some excellent, some okay, and some barely passable (just like any large dispersed group). 

No longer active duty but with service related injuries, you go to the VA.

Now imagine the differences in both numbers of patients and age/health of those patients. Military hospitals will generally see younger people with acute issues (broken leg, arm blown off, a cough, etc.) Where as VA hospitals will see older parents with chronic conditions. Plus there are millions more veterans then active duty service members. It's not a surprise the VA has issues since they are almost always underfunded and over worked.