Technically yes, but the birth certificate for both might be filled with the place of the landing simply.
At least for German law (and probably other ones) that’s what de facto would be required: You enter the exact town the child was born in, if known (but when moving 800 km/h over invisible town boundaries, who takes note of in which town you were at the exact moments the two were born?), or the place where the mother sets foot to ground otherwise.
Twins born on an airplane in flight could be born in different countries.
Technically yes, but the birth certificate for both might be filled with the place of the landing simply.
At least for German law (and probably other ones) that’s what de facto would be required: You enter the exact town the child was born in, if known (but when moving 800 km/h over invisible town boundaries, who takes note of in which town you were at the exact moments the two were born?), or the place where the mother sets foot to ground otherwise.