Er, question.
Let's say you're a commander in the USAAF in this TL. Your forces hold significant quantities of Spain.
How do you nuke somewhere?
Because step one is getting the bomb to Spain. Step two is getting the B-36 to takeoff with the bomb... step three is getting the B-36 to altitude. This means circling for most of a day.
Step four is that you now have to hit the target... and remember, the British know about the B-36 prototype and have been doing their own ultra-high-altitude research in the form of the Wellington high altitude prototype years ago.
At any point if you're hit by a sweep, the bomb goes down. If it's salvage fused, it goes off.
Also, it's probably 1948. (The B-36 had First Flight in late 1946).
to be fair, that isn't what he said by any stretch. You are presuming it is.
A reasonable operational plan would be to base fighters out of Spain and in the Azores, with that base also holding tankers (which the US developed around the same time as the B36, showing up operationally early 50s). A more likely bomber that would show up in numbers would be the B50, which is basically just an improved B29.
If the US, for whatever ASB reason that this situation developed, found itself in a war in Europe against the Europeans, one would assume that the money issues that slowed development of the tankers and B36s until the Korean War started would be eliminated. The Truman Administration really slashed the budget after 1945 and did not spend money until the North Koreans were entering Seoul. Which is one of the reasons the US had such a hard time in Korea for the first couple of years. No money was spent on training and development dollars are hard fought politically between the Air Force and Navy, while the Army got practically none during this period.
So one would assume no budget cuts happen in the middle of ASB World War III
also, Iceland and the Azores are both places that put B29s and B50s well within their combat range of all of the UK, Spain, and most of France and Norway. Of course they would require significant defenses, so most likely you would see shuttle bombing. The aircraft is based on the US East Coat, flies to the Azores or Iceland, refuels, flies to target, bombs, and returns home the same way. Terribly inefficient, but easier than trying to defend advanced bases from certain attack
one other thing... the B50 was part of Strategic Air Command in the early 50s, and from what I have found, missions were assumed to be one way when attacking the Soviet Union (ouch!) and the crew were supposed to escape and evade after (yeah good luck with that in the Siberian tundra). In other words, and from what I have read, the crews didn't expect lengthy lives once World War III began. But hey, that will teach those commies