Defence analysts point to flash points for conflict amid tensions in Strait of Hormuz between US and Iran

Tensions between the United States and Iran have led to speculation that armed troops could be placed on ships to prevent boarding by the Islamic Revolutionary Guard Corps.

Some believe the United States would have to place troops on American vessels as a form of protection against Iran.

Senior Research Fellow Middle East Security at the Royal United Services Institute, Tobias Borck said: "It would be quiet a significant step for the moment at least, and I would remain sceptical that we would eventually see this potential of putting US troops in harm's ways.

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"But what happens when Iran does approach a commercial ship and has US troops onboard?

"That could really be a flash point for conflict."

In response to attempts by the Iranian regime to block or board ships and prevent free trade in the Strait of Hormuz, the Royal Navy deployed frigates to escort merchant navy ships in the area.

The Strait of Hormuz is located between the Persian Gulf and the Gulf of Omar and is one of the busiest shipping lanes in the world.

The 21 nautical mile-wide lane carries between 20% to 30% of the world’s oil. Interference by Iran could have an effect on the global economy if trading is blocked.

Tobias added: "We're in a moment of signalling. The United States is demonstrating that it does still take its commitment to maritime security in the Gulf very seriously.

"Iran has been signalling that it is willing to show that it has leverage and wants to do something about the sanctions it is under."