Name any country that has ever decleared war on the USA?
142644
The United Kingdom, Mexico, the Confederate States of America, Spain, Germany, Italy, Japan, and a few others that were mostly technicalities.
1090560
This is not a UN venture. This is an American war fought by several other countries who are now leaving us there.
757918
False.\n\nThere are far to many to count.  They are and will be directly responsible for the downfall of the USA.
1158290
The USA supported or created every tyrant in the world in the past 40 years, from Osama and Saddam to every South American warlord. They made a point of teaching them to fight dirty against America's enemies and now they are reaping the malcontent they sowed.
973906
There is a difference between protecting the United States and taking the war to the rest of the world. The US does not just have an army on US soil, but almost a third of the planet has US forces occupying it. The enemies of the US are the people that do not want US forces occupying their lands.
131690
No, Congress never declared war on Vietnam for fear that the Chinese or Russians might intervene.  We should have never lost that war but many people say it was "a wrong" war.  We should have sent more troops to help.
1088679
Who was the country that attack iraq \nwho was the country that attack afganistan?\nwho was the country that force iran to change their minester 26 years ago?\nwho is the country that like asians oil and one it all? \nI beilive that america is a very demacrat and good country but it did some bad things
391058
Afghanistan,against Russian invaders.\nthey fought for a full decade!\nwatch out AMERICA.
50974
It didn't. The Vietnam war, the Korean war, the war with Serbia and most of the other wars had nothing to do with protecting Americans.
589058
It's not that cut-and-dried, as evidenced by the reaction of different nations to the U.S. demand to show up in Iraq three years ago.  Many countries are allied with the U.S. on different issues, and aren't all in lockstep with us or each other.  You'll never know exactly which countries are on our side until an event like a war happens.
138021
The foundation for war was laid with the many world wide terrorist attacks.  The war was begun with the undeclared multiple attack on the United States 11 September 2001.  The United States will follow whatever lead exists to find and kill those who have, and threaten to, attack the United States.  \n\nIf you want this ended, then turn over those who are on the wanted list and those who are attacking their own people.
664521
YOU'D PROBABLY SEE ANOTHER 5 STAR GENERAL IF AMERICA WOULD ACTUALLY DECLARE A WAR.  AMERICA HASN'T DECLARED AN ACTUAL WAR IN 65 YEARS.  ALL THE REST HAVE BEEN 'CONFLICTS'.
302131
US tried to stay neutral for a while.  The US didn't like the unrestricted sub warfare, so after attacks on American merchant ships, Wilson declared war on Germany.
355296
Yes. The UK, and England before that, is possibly the most warlike nation in history.\n\nFar, far too many to list here. Take a look at these sites:\n\nhttp://en.wikipedia.org/wiki/List_of_English_wars - Wars of England. (pre-1707)\n\nhttp://en.wikipedia.org/wiki/Category:Wars_of_Great_Britain - Wars of Great Britain (1707-1800)\n\nhttp://en.wikipedia.org/wiki/Category:Wars_of_the_United_Kingdom - Wars of the UK (1800-present)
345673
The USA,of course.\n\nThey want no one but themselves to have weapons of mass destruction.\nThey have absolutely no respect for other goverments from countries with different cultures.\nTheres no other country that  represents a bigger threat  to they world.
233609
Cute_Blondie seems to have a pretty thorough answer there.  My question is do you mean the Vietnam War that the US fought in or is there another war called the Vietnamese War?
577295
A stupid question these nations are allies.However some contributers to this question seem to be under the impression that the last conflict between these two countries was an american victory. This of course is untrue in fact the british made deep incursions into the us and burnt the whitehouseto the ground.Of course if they mean the war of independance, every one was british.The settlers were revolting about unfair taxes,but they were british How many of the founding fathers were british.I can never envisage a time when britain and america would even be in different camps in any conflict of war