Look....This type of "Doomsday" scenario has never been written this way. Writer always pull the reserves card. We are debating hypotheticals from a "common sense" stand point. If there are no reserves, and if the situation calls for their "full strength" and if they have to choose between anothe country or their home country, it's a no-brainer!! I mean do you seriously thin clark could live with himself if he didn't choose his loved ones first?? Barry not choosing to save Iris???