Babak suggested that we should have Korea and the South China Sea included in our list of strategeral concerns. I agree.
Korea. This nightmare state is evidently not going to suddenly disappear. Therefore, we must think about it. IMO they will keep doing product improvements on their missiles and nuclear weapons until they have one that will range Japan, Guam, Oahu or some such place. What will we do about that? Will we wait to see if they ever decide to perform such a mad act? The retaliation would be awesome (teen talk). Would we then invade North Korea along with our Spam tinned meat addicted South Korean friends for the purpose of occupying the ruins? If we did, the South Koreans could be counted on to do the occupying. You probably not want to watch the "sausage making" process of occupation, but ... A bigger question would be - what would Big Grandma do about all this? The neocons are not focused on this problem because it does not involve Israel so she might be without comprehensive advice on this one.
The South China Sea (China). The Chinese evidently want to be a maritime power and to that end have been constructing man made islands built on the "foundation" of tiny sand bars that stuck up out of that distant sea in which I used to SCUBA dive and ... other things. The US Navy seems perpetually absorbed in Alfred Mahan's vision of a world dominated by SEAPOWER! Mahan believed that if you control the sea you control the world. The air power guys seem to have second thoughts about that, but, no matter ... Mahan is the unofficial patron saint of the US Naval War College where he was a professor and wrote his earth shattering tome "The Influence of Sea Power on History." I'm a Clausewitz man. Mahan never seems to go away. I have been subjected by navy people to a lot of harangues on the Soviet sea power menace in the USSR's "drive to warm water ports" in India, Pakistan, Alexandria (once upon a time) and Syria!!. Now, the Fu Manchu menace is "crowding" the sea lanes in the South China Sea with these island bases. After she is installed in the White House the Borg Queen will have to deal with some old sea dog channeling Bull Halsey who wants to "show'em." How will she deal with that?
How would Trump deal with that? Who knows? But ... pl