Britain’s declaration of neutrality recognised the Union and the Confederacy as belligerents, allowing the Confederacy to contract for supplies and commission warships, but it fell short of recognising the Confederacy as a sovereign nation. This protected British interests by avoiding entanglement in the conflict while maintaining the country’s right to trade with both the Union and the Confederacy.

By providing substantial military assistance to Allied nations through the Lend-Lease Act, the United States played a crucial role in bolstering their ability to resist Axis aggression and played a major role in the Allied victory in the Second World War.