S1.E6 ∙ Hydrologue

WWI ended with disputes. Germany invaded Poland in 1939, prompting Britain's war declaration - WWII's start. The 6-year war involved battles leading to Britain's victory, claiming over 60 million lives, history's deadliest conflict.

Torn apart and enraged by ethnic conflict, Mostar is more like two "ghettos" divided by a big boulevard, than the joyful Montmartre of the Balkans that it was before the war.

Films shot by newsreel companies and army cameramen are featured to tell the story of what it was like for soldiers during World War I.

Here are stories from Holland of survival and courage during the Nazi tyranny of World War II.

The work of two artists, Henri Matisse and Henri Bonnard, during the World War II period, is explored in this documentary.

The story of the plane that won WW2, the Mosquito, and its triumphant return to the sky.