Stuck in the middle of the dispute are ordinary commuters who faced major disruption today. Many refused to allow the strikers to bring London to a standstill. In defiance, they walked, or found other ways to get to work.
Paul Brand reports now on how London coped.
More top news
CCTV and images show man suspected of trying to set the north London mosque alight in alleged Islamophobic hate crime
Detectives investigating a man's body washed up on the shores of the river have arrested a second man on suspicion of murder.
Keepers have the celebrating the arrival of the western lowland gorilla to 22-year-old mother Effie in captivity at the zoo.