Americans keen to get into the war against Germany flocked to join the Eagle Squadrons of the RAF in World War Two.
Playlist - Eagle Squadrons

No “Goddamn Politician Made Wars” – The Life of Charles Michael Sweeny, Mercenary of Conscience
Charles Michael Sweeny (1882-1963) is describable as the soldier-of-fortune but it would probably be fairer to call him a soldier-of-conscience. Sweeny played a role in many of the major conflicts that occurred in the first half of the twentieth century where his natural aptitude for soldiering saw him rise from the ranks of rebel and private soldier to various command positions in armies around the world.