Rendering: Three.js r170, MIT license (THREE-LICENSE.txt).
Geographic data: https://github.com/johan/world.geo.json (Natural Earth derived, public domain).
Geography simplified; geopolitical blocs are fictional and provisional.

Alpha 02 additions:
Country boundaries and city coordinates: Natural Earth 1:50m, public domain. https://www.naturalearthdata.com/
Source: https://github.com/nvkelso/natural-earth-vector/tree/master/geojson
Earth imagery and topology: three-globe example assets (NASA Blue Marble derived). https://github.com/vasturiano/three-globe/tree/master/example/img
City icon: Tabler Icons, MIT. https://github.com/tabler/tabler-icons
Troop icon: Font Awesome Free, person-military-rifle, CC BY 4.0. https://fontawesome.com/license/free — https://creativecommons.org/licenses/by/4.0/

Alpha 05 main Earth texture: NASA, land/ocean/ice 8192×4096, public domain. Source: https://commons.wikimedia.org/wiki/File:Nasa_land_ocean_ice_8192.jpg
Triangular troop markers replace the prior soldier asset in the active interface.

Alpha 18 soundtrack:
"Bleeping Demo" by Kevin MacLeod (incompetech.com).
Licensed under Creative Commons Attribution 4.0: https://creativecommons.org/licenses/by/4.0/
Source: https://incompetech.com/music/royalty-free/index.html?Search=Search&isrc=USUAN2000021

Alpha 24 soundtrack:
"Night Signal" — original procedural composition generated for M.I.S.T.A.R..