Iraq and Afghanistan were long wars because we had a ground invasion and then nation building in countries with relatively weak civic structures and identities. It doesn't seem like anybody is seriously considering a ground invasion of Iran here, Israel will probably just continue airstrikes and sabotage/assassination. The US might join in on more airstrikes but it seems extremely unlikely it'd go beyond that, the appetite for nation building is obviously gone ever since Iraq and Afghanistan went terribly. Nobody in the US wants a repeat of that.