This question is sort of valid. Any country assessing threats is going to build contingency plans. That's literally the job of the military. The idea that Biden needs to make a special request to order the military to literally do its job is a little weird. The fact that it was released to the process is also really fucking weird. The press, who obviously knows that this is what the military does, publishing this as a news story is also really fucking weird.

The USA is going to absolutely do contingency planning for what happens if there's a coordinated nuclear strike, but the answer is obvious. The USA has 600+ global military bases outside its territory in 80 countries. What it's going to do is activate its MAD protocols that it's been developing, reviewing, and revising for the past 70 years.

There is literally no chance of a coordinated military strike on the US because the number of targets is too large for any coalition to reasonably target without triggering MAD.

The real threat to the USA is what's happening in Africa - being thrown out and sent packing. This is the only way to defeat the USA. Coordinated economic and political activity to enable one more country at a time to actually push the USA out. This will happen first in bases without nuclear capabilities, because, ya know, MAD. But it will set the template for how it could be done to a nuclear base.

Eventually it will happen to a nuclear base. When that happens, THEN the USA can get worried about it's MAD strategy.

But Biden ordering something like this and then the administration hamfistedly releasing it to the press is just nuclear sabre rattling