Given the enormous US Covid outbreak, the US is likely not far away. We're at 70% adult vaccination and had a minimum of 100 million prior Covid infections. Also throw in tens of millions of people that likely have natural immunity to Covid.
The biggest question with Delta is going to be the matter of repeat infections and how long the vaccines, the vaccines + prior infections, and prior infections (without vaccination) all hold up against it. To say nothing of what variations will follow next after Delta. Is there actually herd immunity to be found with Delta, or will people just keep getting variations of Covid from here forward. I don't believe there will be herd immunity for any nations, there will just be far lower mortality rates due to prior virus exposure and the vaccines. Some non-trivial % of the vaccinated population will continue to get Covid. If there was a chance to squash Covid with the early strain via herd immunity, those days are very long gone.
The great lie still being persisted for the benefit of the agitated public, is that Covid is going to go away courtesy of vaccinations. The authorities have pitched that to the public from the early days of the vaccines to try to max out the vaccination rates. Do this and Covid goes away. The vaccines are never going to stop Covid, they're going to continue to dramatically reduce the mortality rates (which is critical, however the public still doesn't widely grasp the reality of the forever Covid future yet).