Afghanistan, Bosnia, Iraq, Somalia, and talking about pakistan, Iran, the Sudan, Russia, China, Venezuela and on and on. Is there anyone that we are not ticking off? The United States is running out of allies.
If the world turns against us do you think that our European allies will help us? If the world turns against us how do you think the US will do? Is the world equipped enough for an invasion? In an invasion here do you think any bordering nations would be involved for or against the US? Do you think it would happen at all?
The USA isn't a superhuman nation mate. America can fall just like Rome did. If America is invaded then its likely other allied countries will be attacked at the same time so help will be little and far between.
International Level: Activist / Political Participation: 35 3.5%
If the US were attacked it would take more than one nation coming together and attacking us. The chinese and Russia would have to be involved as they have the only navies that are capable of attacking and crippling our navies to allow a ground invasion. Their main objective would to make sure our main allies are attacked so they can not come to our aid. Even then they will have to fight a terrible war on American soil because every american who carries a gun will do all they can to kill the invaders.
It can be something that happens but the world will never be the same after this war. Too many lives will be lost and even if it succeeds the invading countries would not be able to hold on the American soil long. Unless they kill every person in the USA. If they do not they will have to fear the citizens rising up against them all the time.
Russia, China Not to Accept America's Vassalage Status Despite US Pressure:
The US is playing with fire by instigating a military standoff off Russian and Chinese borders, while neither the South China Sea nor Ukraine can be considered America's backyards; Washington needs to understand that neither Russia nor China will accept its vassalage status. Ref. Source 8z