What is Iran’s center of resistance?

.THE United States SAYS THAT its own troops in Syria and also Iraq have been attacked at the very least 55 times considering that Hamas’s attack on Israel on October 7th. Condemning Iran and also its own stand-ins all over the Middle East, it has been countering: on Nov 12th The United States introduced its own 3rd set of air raid in far eastern Syria given that overdue Oct. Iran’s proxies have so far stopped short of introducing strikes that can grab The United States into major war.

However their firepower presents a very clear risk to United States along with its allies. What is this self-proclaimed axis of protection, and exactly how highly effective is it?