Iranian authorities are warning against any foreign ground attacks, after the US dispatched thousands ⁠of its Marines to the Middle East. It's a conflict with no end in sight, prompting questions about what is the Trump administration's end game.  Guest: Stephen E. Biegun, Rothschild & Co Distinguished International Fellow at the Lowy Institute and former Deputy Secretary of State of the United States Producer: Grace Stranger, Eleni Psaltis