Which two conservative parties merged to create the Liberal-Democratic Party of Japan in 1955?

The Liberal-Democratic Party of Japan (LDP) was formed on November 15, 1955, through the merger of Japan's two primary conservative parties: the Liberals and the Democrats.12

This unification was a strategic response to the concurrent merger of the left and right wings of the socialist movement, which had joined together to form the Japan Socialist Party earlier that same year. By consolidating, the Liberals and Democrats sought to establish a unified conservative alternative to counter the growing influence of socialist and communist parties in Japanese politics.21