A significant pledge has been made to improve birth safety in the US. Philanthropists Olivia and Tom Walton's campaign aims to reduce the maternal mortality rate. The goal is to cut this rate in half within a five-year period.

Further details about this initiative are available, including the amount pledged and the target year for achieving this goal. The US currently has a high maternal mortality rate compared to other wealthy nations, according to available data from the Centers for Disease Control and Prevention.