From my memory, Trump wants actual plans for an invasion of Panama, wants to make Canada a state, and he wants to annex Greenland. All of these claims, are threats of war.
I don't think the current administration has remotely near the foresight you all seem to.
FWIW, this was a real question I had, I wasn't among the downvoters. The part that I disagree with is that this is a deliberate/planned precursor to war. Donald Trump views his life (and presidency) as a series of deals and 'hard' negotiating tactics. War would be a failure of that.
His methods are misguided and a caricature of actual negotiation.
Preparing for a war and preparing to threaten it with good credibility are exactly the same thing. That is what the US and the USSR were doing when the end of life on Earth (or at least all life in New York or Moscow) was regularly bluffed against. In the modern world deliberate wars are quite rare, at least as the theory goes they are failed attempts at bluffing. Obviously no country would start a war without first trying to threaten it unless their intent was genocidal.
After the 1000th time of threatening the advisors will start to say, "we will look weak if it doesn't happen."
With the stock market down 5 or so trillion dollars, I am sure the president is very busy using his renowned financial acumen to get things under control. He doesn't have time for war.
Gosh, can't anyone take a joke these days?