LONDON is on high alert today ahead of the arrival of US President Barack Obama. Mr Obama, accompanied by his 500-strong entourage, is due to land on British soil at 7.45pm. Air Force One will touch down at Stansted Airport before the President and the Fi

LONDON is on high alert today ahead of the arrival of US President Barack Obama.

Mr Obama, accompanied by his 500-strong entourage, is due to land on British soil at 7.45pm.

Air Force One will touch down at Stansted Airport before the President and the First Lady are flown by helicopter to the US ambassador's residence in Regent's Park.

It will mark the beginning of Mr Obama's first foreign trip since he was elected last November.

During his stay in London he is due to have high-profile talks with the leaders of India, China, South Korea and Russia.

He has also pencilled in talks with Prime Minister Gordon Brown, a meeting with Conservative Leader David Cameron and a private audience with the Queen.

He will then join other world leaders, including Mr Brown for the G20 summit on Thursday before heading off to a series of planned meetings in Europe.

A total of 200 secret service agents have been charged with protecting the President during his trip.

The entourage will also include medics and chefs and Michelle Obama will have a staff of eight.

* Read more in this week's Ham&High, out on Thursday.