No country other than the U.S. has the heavy lift capability to come here in an invasion
Doesn’t have to be like D-Day.
Seattle declares itself to be a separate nation.
We say “good riddance”.
Six months later, Seattle is starving.
Their leaders say “We’re too proud to ask for help from The US.”
They ask for help from China.
In one year, over one million Chinese Soldiers masquerading as aid workers come to Seattle.
The invasion is unopposed.
Read Camp of the Saints some time.