No, the US can't block a country's access to the internet. The internet is provided to the public by the individual service providers. The internet may have originated in the US, but they don't control it.
Considering the web is worldwide, every country that has access to it. Some countries block certain sites though.
mesh sdr access point
You cannot, they are not manufactured with a block heater.
You have to access your firewall ports, and block the port that communicates to battle.net.
You can block images on your iPhone or protect them against unauthorized access by going to General under Settings, and setting your preferred access mode under the Restrictions.
In Iran normal Internet is so slow because its dial up so its kind of impossible but some people have very expensive Internet and its fast but in Iran this web site is blocked so they have to use block Breaker.
Holland sent Adriaen Block in 1613.
If you are using your employer's computer or network access, you cannot block them from seeing your web usage.
China
a square mile
because of the Persian war they made blockades to block enemy ships.