score:4
There don't really appear to be any.
Let's go through a list of major US conflicts since WWII, and list how their nationals were treated during and after.
Korean War - This was a Civil War where the US was helping the non-Communist side. In other words, Koreans were our allies too. No mass incarceration or deportations.
Vietnam War - Same as above. After the war, there was a decade-long refugee crisis involving around 2 million people. The US took in over 100,000 initially, and many thousands thereafter1.
Lebanese Civil War - No mass internements or deportations. The US took in about 60,000 Lebanese war refugees 2.
First Gulf War - Similar to Korea, in that the goal was helping one Gulf state against another. There were (and are) a fair number of Iraqi-Americans at the time3. No mass internments or deportations. All indications at the time were that, Republican Guard aside, most Iraqis didn't even want to fight, and "surrendered" at the first opportunity. Probably the worst effects were (as usual for the region) felt by the Palestinians. In Kuwait they got a double-whammy; 200,000 fled harassment from their Iraqi conquerors, then another 200,000 had to flee when Kuwait's government was restored, due to their anger at the support Palestinians abroad had shown Iraq during the conflict. Probably some of these refugees ended up in the US, but I'm not aware of large numbers of them doing so.
Afghanistan - The goal of this war was essentially to remove a government that was enabling the terrorist group that carried out the 9/11 attacks. Again, we had lots of Afghan allies. There were no mass deportations or internments in the US, although the US did "intern" the Taliban's money. Perhaps that counts?
Second Gulf War - Situation here was similar to the First Gulf war, although this conflict did end up being far messier. Still, no mass internments or deportations in the US.
So in general, I don't believe the experience of mass internments from WWII has been repeated since. To the contrary, the US has a history of taking in large amounts of refugees fleeing such conflicts.
Before we go away thinking warm fuzzy thoughts though, I feel compelled to point out that these conflicts all have something in common, but different than WWII: they were sold at least in part as the US helping out the country in question. They were not conflicts against a nation that was perceived to have the popular support of its own people there for its actions.
The closest I believe the USA has seen to that was during the Iranian hostage crisis. I distinctly remember a lot of anti-Iranian feeling floating around back then, to the point where if I were Iranian, I certainly wouldn't have felt safe. Ratchet that up a few notches for an actual shooting war, and it may well not have been safe to be an Iranian walking around in public. At that point internment talk ("for their own safety") may start making sense to some people.
1 - A suprising amount of the Catholics in my town I discovered on a visit to Catholic Charities are not Spanish-speaking, but Vietnamese. I of course had Vietnamese-americans as classmates back in the 80's as well. In the 90's on the highest-clearance military job I ever worked on, 2 of my 8 fellow engineers were born in Vietnam. I'm not sure I could even count how many I've played soccer with over the years.
2 - Lebanese Americans are now an integral part of our community here. Among loads of other restaurants two of our oldest steakhouses are explicitly Lebanese, as is my tailor, and multiple co-workers.
3 - I personally play soccer with at least three on occasion. Likely more I don't know about.
Upvote:0
No. Because the subsequent wars were "different."
During World War II, Japan (and Germany) represented an existential threat to the United States. If they somehow won, the consequences for America and Americans would have been grave
Not so, for wars such as the Korean War, or the Vietnam war, or smaller "police" actions such as Grenada or Panama. A victory by the "locals" was no threat to the American way of life, and therefore, there were no repercussions against Americans of those backgrounds. In most cases, there were far fewer of them than Japanese-Americans.
Upvote:3
Though not a 'shooting war', the Iranian Hostage crisis did result in actions taken against Iranians in the US.
From a statement issued by President Jimmy Carter, on April 7, 1980:
Fourth, the Secretary of Treasury [State] and the Attorney General will invalidate all visas issued to Iranian citizens for future entry into the United States, effective today. We will not reissue visas, nor will we issue new visas, except for compelling and proven humanitarian reasons or where the national interest of our own country requires. This directive will be interpreted very strictly.
(emphasis mine)The full text of the above can be read here.
I am still looking for reliable sources on the number actually deported, but it may have been around 7,000. A court of appeals validated the order in December, 1980. From the Washington Post:
U.S. Justice Department officials said yesterday that 54,486 Iranian students have reported to immigration officials so far and 6,444 were found to be in violation of their visas and were candidates for deportation.