NATO's boundaries end at the western shores of Canada and the United States. You never see any discussion about the Pacific dimension of NATO. It always seems to end on the western shores of France. That's one of the things we need to raise.
With respect to article 5, and from a policy standpoint, the United States recognizes five domains of warfare: air, land, sea, space, cyber. What triggers a conventional response? What triggers article 5 in emerging domains? That's what we're talking about: modernizing NATO and moving it into the 20th century.