Captain America: Civil War would have long-lasting consequences for Marvel’s superheroes as a feud between Tony Stark and Steve Rogers drives the Avengers apart.
Endgame will almost certainly see Stark and Rogers finally settle their beef, making the moment that the Avengers unite once again all the sweeter.
The disbandment of the Avengers is the crucial takeaway as it played a key factor in the heroes losing against Thanos.
The Russo Bros. themselves said that that this was one of the two most important movies to watch before Endgame and it’s easy to see why.