It seems very clear to me that Americans don't want a regional war. Despite the bravado about the ability to fight in both the Middle East, Ukraine and possibly near China, I don't think Americans can do that without dragging the world into a mutually destructive war.
Here is article on NY Times. It is behind paywall. I am quoting a few relevant articles--with a little bolded part as music to Putin!
Defense Secretary Lloyd J. Austin III has ordered a second aircraft carrier, the Dwight D. Eisenhower, to the region to deter hostile actions.
www.nytimes.com
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The Air Force is also rushing additional land-based attack planes to the Persian Gulf region, doubling the number of F-16, A-10 and F-15E squadrons on the ground. Combined with the four squadrons of F/A-18 jets aboard each carrier, the United States will have an aerial armada of more than 100 attack planes, officials said.
The Pentagon has also sent a small team of Special Operations forces to Israel to assist with intelligence and planning for any operations to help locate and rescue the
150 hostages Hamas is believed to be holding, including some Americans.
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The Pentagon has also positioned stockpiles of arms and ammunition worth about $2 billion at about six sites in Israel. The stockpiles provide weapons and ammunition for the Pentagon to use in Middle East conflicts, and the United States has also given Israel access to the supplies in emergencies.
Use of the stockpiles is set up in a “dual key” arrangement in which both countries sign off on their use. For instance, the Pentagon, with Israel’s permission, has tapped into the vast but little-known stockpile to help meet Ukraine’s dire need for artillery shells in the war with Russia.