US President Donald Trump is considering deploying ground troops to Iran, but military experts warn of significant challenges in capturing key targets.

<img alt="Closeup photo of Donald Trump" height="349" src="https://i.cbc.ca/ais/65a38e68-bb8d-43c0-a6f8-b447bea7ad1a,1774885981974/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C625%2C6000%2C3375%29%3BResize%3D%28620%29" title="U.S. President Donald Trump speaks to reporters aboard Air Force One while travelling from West Palm Beach, Fla. to Joint Base Andrews in Maryland on Sunday." width="620" /><p>As U.S. President Donald Trump considers ordering U.S. ground troops into Iran, military experts...