Battlesquare is Copyright (C) 2013, by Conflict Industries
It is free software; you can redistribute it and/or modify it under the terms of either:
a) the GNU General Public License as published by the Free Software Foundation; either external linkversion 1, or (at your option) any later version, or
b) the "Artistic License".
141 Military Icons Set by AngryMeteor.com under CC-BY 3.0 license
http://opengameart.org/content/141-military-icons-set
The import directory contains various libraries and headers, the relevant license can be found in the source.