Mhttoanywhere, you are so incredibly incorrect that it pains me to write here. Three years??? Sorry, wrong, up until the 1960's there was a lot of ambiguity, however you are welcome to do some real research and find out for yourself for what you posted was incorrect.

the 18 yearold thing is an idiotic canard that I hear over and over again. The US has NEVER EVER EVER had any such provision, this sort of provision is more normal in certain central and northern European states such as Germany and Austria,and in the case of Germany is no longer 100% binding in all circumstances.

Every frigging time this subject comes up, all the armchair experts come out of the woodwork and pass off urban legend as fact. A US citizen can take up pretty much any second third, fourth or TENTH nationality that he/she wants as long as he/she does not intend to relinquish US citizenship, commit treason against the US, bea tax fraud, work in certain positions in foreign governments w/o State Dept prior approval, or serve in the armed forces of another state (although there are a million loopholes in that one regarding cumpulsory service, NATO allies, etc.). this has been the case for MANY decades.

I have posted the following everytime this subject comes up. Citizenship laws exist in vacuums, each countries laws have no relationship or bearing with any other laws. Many countries legally DO NOT allow you to renounce citizenship, therefore taking an oath to do so means ABSOLUTELY NOTHING as the country you are "leaving" still considers you a citizen NO MATTER WHAT. Even if you do renounce, there is often little that keeps you from becoming a citizen of another country AFTER you attain the new citizenship. Even countries with the most restrictive of laws, such as Austri, have a few loopholes.