Is a new US-led war looming with Iran?

The United States is deploying troops in Saudi Arabia as tensions soar with its arch-rival Iran raising concerns over navigation in the Gulf's strategic Strait of Hormuz. It will be the first deployment of its kind since 2003, when American forces withdrew from the kingdom after a 12-year presence and two US-led wars with Iraq that culminated with the toppling of dictator Saddam Hussein. Separate statements from Riyadh and the US Central Command, or CENTCOM, say the Saudi deployment aims to ensure stability in the turbulent Gulf.

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