The All-Star Squadron is a team that includes a lot of Golden Age characters, as Scav said, but it was created in 1981, so it's a relatively modern team. The All-Star Squadron was meant to be a team made of heroes that didn't join the army (like many JSA members did) to protect USA from the inside.
The All-Star Squadron can be considered the combination of every Golden Age superhero group ever: the JSA, the Seven Soldiers of Victory, the Freedom Fighters...
The team is not often represented, but it had its own run in the 80s, All-Star Squadron Vol 1.