This is the yearly funding bill that pays for most of what the U.S. military does day to day, though it doesn't cover military housing, base construction, or nuclear weapons production—those get money elsewhere. It funds troops' paychecks, keeps equipment and bases running, buys new weapons and gear, and pays for research on future military technology. It also covers military health care for service members and their families, efforts to destroy dangerous chemical weapons stockpiles, drug-trafficking crackdown operations involving the military, and internal watchdog offices that investigate waste or misconduct. Additionally, it funds retirement benefits for former CIA employees and an office that helps coordinate the country's various intelligence agencies, and it sets rules on how all this money can and can't be spent.