The National Speech & Debate Association (NSDA) is the largest U.S. organization for competitive speech and debate. It fosters critical thinking, public speaking, and leadership through events like Policy Debate, Lincoln-Douglas, and Extemporaneous Speaking. NSDA hosts national tournaments and provides resources to help students develop communication and advocacy skills. https://nsda.gov.bd/site/page/847dc355-7eb6-452c-86d7-b4be29af4508/%E0%A6%97%E0%A6%AD%E0%A6%B0%E0%A7%8D%E0%A6%A8%E0%A6%BF%E0%A6%82-%E0%A6%AC%E0%A7%8B%E0%A6%B0%E0%A7%8D%E0%A6%A1