Clickbait bullshit. The Department of Defense statement clarifies the US "troops" are just the crew required to operate the air defense battery equipment the US has been supplying to Israel for a while now.
This is not the first time the United States has deployed a THAAD battery to the region. The President directed the military to deploy a THAAD battery to the Middle East last year following the October 7th attacks to defend American troops and interests in the region.
Again, nothing new or different about this. The US is not putting boots on the ground to shoot people up. At least not yet.
In the past, the US has stationed supporting troops off of Israel, in battleships far away. It's meant to provide support while keeping things calm.
The reason that putting any soldiers IN Israel is significant is that it means that if Iran tries to kill any Israeli soldiers, they can't do it without risking killing Americans. And if they kill an American, it is understood that we will retaliate and they will be at war with the United States of America.
That's the point of sending 100 troops to offer "tech support". It's to deliberately create conditions that could start a war. If you ask a general, they'll claim that it's just shrewd tactics, because letting Iran know all this means that good judgment will prevent them from attacking Israel. But every war in history is preceded by people making those claims (even when they don't believe them) before going to war.
This is foreplay. This is how you flirt when you're a NatSec pervert thinking of going to war against someone.
And don't you think that 100 troops deployed in Israel means that the US is actively defending Israel? We're already past the point of the US enabling Israel aggressions and rabid rogue actions and the large scale genocide. The US will fight the wars started by Israel