@thatbrickster@mangeurdenuage A tank that works well enough to drive is never obsolete, as that's a target of limited strategic value a enemy could waste their expensive anti-tank weaponry on, rather than on the tanks of strategic value.
The tanks are in working order, but it seems the Australian military can't be bothered to maintain them and instead are buying new ones of the same model.
The money has already been burnt, although some money could have been recovered via a resale to someone who wants them (i.e. for more war crimes).
@parker I believe the software for fire control and targeting systems is proprietary and the copyright and source code holder is either the US military or some contractor, but really the contract of such tank purchase should have required that the source code be included under a free license.
Software doesn't necessarily need to be published under some version of GPL to be free.
It would be a major violation of the tank purchasers freedom for the tank to run proprietary software, but whatever insurgents do appears to be unrelated, as they never end up owning the tank - they only operate it.
@Suiseiseki@mangeurdenuage@thatbrickster More importantly, is the software for the fire control and targeting systems on the M1A1 published under the GPL? It would be a major violation of insurgents' freedoms to be aided by non-free software when blowing up their homes.