Watch S1, EP4: Underwater Killers with Fubo for $0 Today
The United States entered the war after the sinking of the Lusitania; submarines were established as an effective weapon.
The United States entered the war after the sinking of the Lusitania; submarines were established as an effective weapon.
How to watch
More episodes
World War I: The First Modern War
S1, EP1 "Armored Beasts"As the first armored fighting machines, tanks were used to break through fortified areas and protect troops from heavy fire.
World War I: The First Modern War
S1, EP2 "Clouds of Death"After Germany first weaponized chlorine, other countries also began to weaponize chemicals; the biggest land mine in history.
World War I: The First Modern War
S1, EP3 "Massive Air Attacks"Giant airships delivered bombs to battlefields.
World War I: The First Modern War
S1, EP4 "Underwater Killers"The United States entered the war after the sinking of the Lusitania; submarines were established as an effective weapon.
More world history shows
See allThe World of Bridges
Exploring the evolution of bridges and how they have impacted history and people's lives.
Biography
The long-running biographical anthology series offers in-depth profiles of major figures throughout history. From current pop-culture favorites such as Reese Witherspoon and Cameron Diaz to criminals like the Unabomber and serial killer John Wayne Gacy and historical figures including Caligula and the Marquis de Sade, "Biography" offers a close look at the lives and times of the people and groups profiled.
Ancient Engineering
Examining the engineering technology of the past.
Hitler: The Lost Tapes of the Third Reich
Examining the life and times of Adolf Hitler and following the full arc of his ascent, tyrannical reign, criminality and undoing.