The International Brotherhood of Teamsters is a labor union in the United States and Canada, representing a diverse group of workers across various industries. Founded in 1903, it originally focused on the transportation sector, particularly truck drivers and warehouse workers. Over the years, the union has expanded to include members from sectors such as healthcare, construction, and public services. The Teamsters advocate for workers' rights, fair wages, and better working conditions. They engage in collective bargaining and provide support for their members through various programs, including training and legal assistance. The union is known for its strong political influence and commitment to social justice issues.