韩国总统办公室表示，美国贸易谈判包括增加国防开支和购买美国武器。

Core Point - The South Korean presidential office indicates that U.S. trade negotiations will include increased defense spending and the purchase of American weapons [1] Group 1 - The negotiations are focused on enhancing defense collaboration between South Korea and the United States [1] - There is an emphasis on the financial commitment from South Korea towards U.S. defense products [1] - The discussions may lead to significant changes in South Korea's defense procurement strategy [1]