He's shifting troops out of Europe, forcing Europe to take responsibility for their own defense, openly talking about the need for this and it builds on Biden's push to re-arm Europe with Ukraine. Those troops can only be moved to Asia.*

So I agree some sort of military use is likely. Will it be a war or just piracy and using those troops as part of an island chain blockade of Chinese goods? Maybe they plan to fight them over Taiwan, to attempt to bleed China and give rationale for why the "liberal garden" of Europe should cut trade with China just when they're still weakly entertaining trying to use China to balance US influence in order to uphold their "liberal values" they cherish more than life itself. They have Taiwan declare independence and China has to act, it's as simple as that.

Certainly the US needs the middle east occupied and destabilized save for their puppet kingdoms to create an impassible zone for the belt and road that prevents China using overland routes for trade with Europe/Africa/etc. Their zionist puppet has had sadly great success lately, they've won the war whether we like it or not. Syria has fallen into the hands of extremist puppets, Hezbollah is biding their time (for what who knows) after losing their leadership and facing the risk of the nation's army being turned on them, Hamas has not won and Bibi is so corrupt he cannot let the war end so his only solution is continued genocide to prevent the courts at home getting him, figuring once he delivers greater 'israel' and defeats all their enemies he'll be such a hero that they won't be able to send him to prison. Iran is weaker than ever as a result of these developments, loss of its proxies and supply lines to them (Syria was a vital link to supply Hezbollah).

*That's another possibility. Rather than attacking China they could use their troops to attack and destroy Iran to completely cement control of that key region, removing it as both trade routes, trade partners, and access to any oil from the region leaving China wholly dependent on Russian gas and oil which Russia then has an incentive to charge China higher prices for the moment that their own access to world markets to sell their petro-products is unblocked which makes China less competitive.