So far his busiest day has been documenting the battle of Warsaw on 26 September, tweeting the events of the day before Warsaw fell to the Nazis.

BBC: Oxford graduate tweets World War II in real time

In 1943, during World War II, tens of thousands of Jews living in the Warsaw Ghetto began waging a valiant but futile battle against Nazi forces.

CNN: Friday,

He was waiting for the S.S., which had taken over the battle in Warsaw, to annihilate the Home Army for him, thereby removing a potential obstacle to the establishment of a Soviet puppet regime when the war was over.

NEWYORKER: Getting Real