Arguably, US Navy power projection services are provided worldwide.
I saw interviews about this and the Danish kidnap victim rescued with Ms. Buchanan said something to the effect of "the best thing that happened to me given this scenario was getting kidnapped with an American."
Citizenship has its privileges. I've been an US expat and will likely be one in the future and have no problem with paying taxes as a citizen either here or abroad.
[0] https://en.wikipedia.org/wiki/Rescue_of_Jessica_Buchanan_and...