That might make sense. Either that, or have contesting the capital as a precondition to checking for them. However, in all three cases, the situation was caused by sneaky moves of troops to places just big enough to cause them to be contested, which is why I suggested giving the country the entirety of its turn to try to correct the situation (like in WWII games of A&A when a capital is captured). As it was, we sent armies on suicide missions right before the turn of the country in question just to trigger the collapse, even though the moves would otherwise NEVER have been made (like sacrificing a considerable army just to have 1-2 units survive, thereby contesting a territory).