There have been other births during the evacuation as well. Several other Afghan women gave birth either on a U.S. aircraft or at a U.S. military base in a foreign country.
Medical support personnel from the 86th Medical Group help an Afghan mother and family off a U.S. Air Force C-17, call sign Reach 828, moments after she delivered a child aboard the aircraft upon landing at Ramstein Air Base, Germany, Aug. 21. (cont..) pic.twitter.com/wqR9dFlW1o
One woman gave birth on a U.S. military plane that landed in Germany. Medics jumped on board when the plane landed and tended to her. The parents named the newborn girl Reach ... the call sign of the C-17.
According to the State Dept's Foreign Affairs Manual, "A U.S.-registered aircraft outside U.S. airspace is not considered to be part of U.S. territory," thus "a child born on such an aircraft outside U.S. airspace does not acquire U.S. citizenship by reason of the place of birth."
If a child is born over U.S. airspace, they would become a U.S. citizen.
It's unclear if a baby born on a military base in a foreign country would be eligible for U.S. citizenship.
As for planes flying to Europe ... there is generally no automatic citizenship. However, there's something called the Convention on the Reduction of Statelessness ... and countries that have signed on offer citizenship in the country where the aircraft is registered. This presents a problem for refugees ... the plane might be registered to a country that has no connection to the final destination of the aircraft.