The Full Form of JBS is John Birch Society.

The John Birch Society (JBS) is an advocacy group supporting anti-communism and limited government. It has been described as a radical right and far-right organization.

Businessman and founder Robert W. Welch Jr. (1899–1985) developed an organizational infrastructure in 1958 of chapters nationwide. After an early rise in membership and influence, efforts by those such as conservative William F. Buckley Jr. and National Review, critics of the Society, pushed for the JBS to be identified as a fringe element of the conservative movement, mostly in fear of the radicalization of the American right. More recently Jeet Heer has argued in The New Republic that while the organization’s influence peaked in the 1970s, “Bircherism” and its legacy of conspiracy theories has become the dominant strain in the conservative movement.Politico has asserted that the JBS began making a resurgence in the mid-2010s,and many political analysts from across the spectrum have argued that it shaped the modern conservative movement and especially the Trump administration.Writing in The Huffington Post, Andrew Reinbach called the JBS “the intellectual seed bank of the right.”

Originally based in Belmont, Massachusetts, it is now headquartered in Grand Chute, Wisconsin a suburb of Appleton, Wisconsin, with local chapters throughout the United States. The organization owns American Opinion Publishing, which publishes the magazine The New American.