It's more nuanced than that. The US does not recognize dual citizenship, but they do recognize that another country can grant citizenship to an American citizen without the American citizen taking explicit action that denounces their American citizenship. And that getting a foreign passport for travel convenience does not constitute renouncing your American citizenship.
What that means is an American can get duel citizenship without publicly renouncing their American citizenship. Especially through marriage or birth.
However, if there is ever a situation where you need the US government to intervene on your behalf with the other government, then you have a tough choice to make.
For example, I read one story where a young man had dual Israeli and US citizenship, was living in Israel, and was being told by the Israeli government that he was being drafted into the Israeli military. He went to the American consulate and tried to get help from the US government to avoid Israeli military service. The US response was, "why does Israel think they can draft you?" His response was "I'm an Israeli citizen". "Oh, so you're not an American citizen, sorry we can't help you." "No, I am an American citizen, I have dual citizenship!" "No, you're either an American citizen or an Israeli. If you want our help, you're going to need to choose which it is."
I don't know if that story is true or not. However, it does illustrate the State Departments position on dual citizenship.
My wife and son have dual citizenship, and I looked up the State Department's guidelines on it several years ago when my wife was registering our son as a citizen in Mexico. The text now is essentially the same as then. And that website says what I said in my comment, just in different terms.
U.S. law does not mention dual nationality
That says the US does not recognize dual citizenship, as there is no mention of it in US law.
Persons may have dual nationality by automatic operation of different laws rather than by choice.
That says the state department recognizes that other countries may grant citizenship to an American citizen without the American citizen taking explicit action that denounces their American citizenship.
Dual nationals owe allegiance to both the United States and the foreign country. They are required to obey the laws of both countries, and either country has the right to enforce its laws.
This is the only part that had any substantial changes. Yet, the young Israeli example I gave would still play out the same. The US government would not be able to intervene in preventing the country of Israel from drafting the young Israeli/US citizen, because he is subject to Israeli law. He would have to renounce his Israeli citizenship in order for Israeli law to no longer apply to him, and the US State Department would not intervene until then. The only difference would be that the State Department would no longer tell him he is one or the other. The end result would still be the same, the State Depart wouldn't lift a finger until he renounces his Israeli citizenship.
U.S. law does not mention dual nationality or require a person to choose one nationality or another. A U.S. citizen may naturalize in a foreign state without any risk to his or her U.S. citizenship.
that a US citizen may naturalize in a foreign state with out risk to their US citizenship actually says the US recognizes dual citizenship. It is because US law does not mention the possibility. If there is no code stating you cannot cross the middle of the street, you cannot be charged with jaywalking then.
as to your other points and your story about the Israeli, I cannot argue if you wish to believe a made up story over what is said by the state department. Believe what you will, I just cannot argue the point today.
US recognizes dual citizenship with many countries now
It's more nuanced than that. The US does not recognize dual citizenship, but they do recognize that another country can grant citizenship to an American citizen without the American citizen taking explicit action that denounces their American citizenship. And that getting a foreign passport for travel convenience does not constitute renouncing your American citizenship.
What that means is an American can get duel citizenship without publicly renouncing their American citizenship. Especially through marriage or birth.
However, if there is ever a situation where you need the US government to intervene on your behalf with the other government, then you have a tough choice to make.
For example, I read one story where a young man had dual Israeli and US citizenship, was living in Israel, and was being told by the Israeli government that he was being drafted into the Israeli military. He went to the American consulate and tried to get help from the US government to avoid Israeli military service. The US response was, "why does Israel think they can draft you?" His response was "I'm an Israeli citizen". "Oh, so you're not an American citizen, sorry we can't help you." "No, I am an American citizen, I have dual citizenship!" "No, you're either an American citizen or an Israeli. If you want our help, you're going to need to choose which it is."
I don't know if that story is true or not. However, it does illustrate the State Departments position on dual citizenship.
this is from the US State Dept website
https://travel.state.gov/content/travel/en/legal/travel-legal-considerations/Advice-about-Possible-Loss-of-US-Nationality-Dual-Nationality/Dual-Nationality.html
My wife and son have dual citizenship, and I looked up the State Department's guidelines on it several years ago when my wife was registering our son as a citizen in Mexico. The text now is essentially the same as then. And that website says what I said in my comment, just in different terms.
That says the US does not recognize dual citizenship, as there is no mention of it in US law.
That says the state department recognizes that other countries may grant citizenship to an American citizen without the American citizen taking explicit action that denounces their American citizenship.
This is the only part that had any substantial changes. Yet, the young Israeli example I gave would still play out the same. The US government would not be able to intervene in preventing the country of Israel from drafting the young Israeli/US citizen, because he is subject to Israeli law. He would have to renounce his Israeli citizenship in order for Israeli law to no longer apply to him, and the US State Department would not intervene until then. The only difference would be that the State Department would no longer tell him he is one or the other. The end result would still be the same, the State Depart wouldn't lift a finger until he renounces his Israeli citizenship.
what you are saying is not necessarily true.
that a US citizen may naturalize in a foreign state with out risk to their US citizenship actually says the US recognizes dual citizenship. It is because US law does not mention the possibility. If there is no code stating you cannot cross the middle of the street, you cannot be charged with jaywalking then.
as to your other points and your story about the Israeli, I cannot argue if you wish to believe a made up story over what is said by the state department. Believe what you will, I just cannot argue the point today.