GAB http://api.nsgreg.nga.mil/geo-political/GENC/3/3-19 urn:us:gov:dod:nga:def:geo-political:GENC:3:3-19 geo-political:GENC:3:3-19 ge:GENC:3:3-19 GA http://api.nsgreg.nga.mil/geo-political/GENC/2/3-19 urn:us:gov:dod:nga:def:geo-political:GENC:2:3-19 geo-political:GENC:2:3-19 ge:GENC:2:3-19 266 http://api.nsgreg.nga.mil/geo-political/GENC/n/3-19 urn:us:gov:dod:nga:def:geo-political:GENC:n:3-19 geo-political:GENC:n:3-19 ge:GENC:n:3-19 exception 2023-07-01 unchanged independent GA-1 GA-2 GA-3 GA-4 GA-5 GA-6 GA-7 GA-8 GA-9 fra