You can resolve each die separately and may want to depending on if you need someone to go before you for some reason. The option is there that you can choose to spend two dice for one action to select a card from anywhere OR spend one die to grab the card from the region in question.
If you had 3 dice there, you could end up with 2 or 3 cards depending how you used your dice.
OMG We were totally playing that wrong. Man that will help move things along nicely. Thanks!