The National Socialist Party was a small political party in the United Kingdom, founded in 1916. It originated as a minority group within the British Socialist Party who supported British participation in World War I; while historically linked with the Marxist left, the party grew more moderate. It affiliated to the Labour Party and was eventually absorbed by it.The National Socialist Party was founded by Henry M. Hyndman and his followers after his defeat in the leadership elections of the British Socialist Party. They believed that it was desirable to support the United Kingdom in World War I against "Prussian militarism". Although maintaining that they were a Marxist party, after affiliation to the Labour Party in 1918, they renounced vanguardism and saw in the Russian Revolution only the danger that it might weaken the United Kingdom's war effort. The party was grouped around the newspaper Justice.