The Partido Comunista de Alemania (PCA) was a political party in Germany founded in 1918, emerging from the Spartacist League. It aimed to establish a communist society based on Marxist principles and was a significant player in the German labor movement during the early 20th century. The PCA was involved in various political struggles, including the German Revolution of 1918-1919. However, it faced internal divisions and external repression, particularly during the rise of the Nazi Party. The party eventually dissolved in 1956, merging with the Socialist Unity Party in East Germany.