How did great britain attempt to sway the united states to support the allies during world war i?

Great Britain attempted to sway the United States to support the Allies by highlighting every German atrocity inflicted on the Allies to stir up anti-German sentiment in the United States.

The victorious allied nations of World War I and World War II. In World War I, theAllies included Britain, France, Italy, Russia, and the United States. In World War II, the Allies included Britain, France, the Soviet Union, and the United States.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories