Union movements are organized efforts by workers to improve their rights and working conditions through collective bargaining. These movements advocate for better wages, benefits, and job security, often forming labor unions to represent their interests. Unions negotiate with employers on behalf of their members to reach agreements that benefit the workforce. Historically, union movements have played a significant role in shaping labor laws and workplace standards. Key events, such as the Labor Day celebrations and the Haymarket Affair, highlight the struggles and achievements of workers. Today, unions continue to address issues like workplace safety and fair treatment in various industries.