On the 24th of March 1945, 75 years ago this year, the largest ever airborne operation swung into action. Operation Varsity involved over 16,000 paratroopers and thousands of planes, the objective was to secure the west bank of the Rhine and the bridges over the Issel. Behind them was the Monty’s 21st Army Group which was crossing the Rhine as part of Operation Plunder.

A successful crossing of the Rhine would allow the allies access to the North German Plain and ultimately to advance upon Berlin.

Joining me today is James Fenelon.

James served in the US Airborne before turning his hand to writing, he is the author of Four Hours of Fury which looks at Varsity. It’s a good read and does an excellent job of getting across the confusion of the situation for those men, once they hit the ground on that day in 1945.

"Richard Sorge was a man with two homelands. Born of a German father and a Russian mother in Baku in 1895, he moved in a world of shifting alliances and infinite possibility. A member of the angry and deluded generation who found new, radical faiths after their experiences on the battlefields of the First World War, Sorge became a fanatical communist - and the Soviet Union's most formidable spy."

Joining me to discuss Sorge is Owen Matthews.

Owen is the former Moscow and Istanbul Bureau Chief for Newsweek Magazine and has just has just released a biography of Richard Sorge, An Impeccable Spy: Richard Sorge, Stalin’s Master Agent. It’s a cracking read! I thoroughly enjoyed it…