Like many of your thoughts/ideas/theories/flightsoffantasy, I'm left speculating what you're talking about. Perhaps your expectation is that it would be necessary to physically recreate two opposing 'trenchlines' down to the exact detail as would be found in, say, Eastern Ukraine, so that troops can play silly buggers at the division level? Other than having space to do live fire, which would not likely go beyond a battle group (battalion), it would not require anymore than what was needed for the exercising of formations during the Cold War. Space in which nothing happens (other than transit of troops, eqpt or munitions on the way to a target) can be simulated. If space is needed to exercise wide ranging tactical and administrative movement of units/formations (and that it necessary - more than it used to be practiced in Canada), it can be accomplished the same way we did it back when we hitched onions to our belts and prepared to oppose Warsaw Pact forces - in Requisitioned Manoeuvre Areas (RMAs), i.e., the German countryside.
Or are you suggesting a Canadian version of Fort Irwin? And even then, some spaces can be simulated.
