Can Iran beat the US military?
Not in a conventional war. The US military is overwhelmingly superior in technology, air power, and naval capability. However, Iran can make occupation prohibitively costly.
What is Iran's military strategy?
Iran relies on asymmetric warfare: missiles, proxy forces (Hezbollah, Houthis, Iraqi militias), cyber attacks, naval mines in the Strait of Hormuz, and making the war economically unsustainable for America.