On one of its better days, the Department of Defense has invented a better way for soldiers to make coffee in the field using left over food warmers from MRE (i.e. combat ration) packages, and a special bag that doubles as both a coffee pot and a cup, so that they don't need a canteen and don't have to wash a cup afterwards. Field tests have apparently been a great success.
They still haven't quite gotten to the point of the field expresso machine, but maybe if we get Starbucks and the Italian military working together on the issue, that can be resolved as well. Maybe the reason that they rebid the next generation M-16 was to add this feature. ;)