They wrote in the amendment clause into the original constitution allowing for constitutional amendments as long as they were approved by a 2/3 vote in both the Senate and House of Reps and wasn't declared unconstitutional by the Judaical or Executive branches. Also a amendment can not be erased from the constitution another amendment must be placed to void it. <span />
The US and Brits wouldn't have access to Russia to send supplies and Russia is cold so both countries would have to wait till spring to counter-attack.
