Is the US is not a party to the 1977 Additional Geneva Protocols?

The United States is indeed a party to the 1977 Additional Protocols of the Geneva Conventions, but it has not ratified them. While the U.S. signed the protocols, it has expressed reservations about certain provisions, particularly those related to the scope of warfare and the protection of combatants. Therefore, while the U.S. acknowledges the protocols, it does not fully accept all of their terms as binding law.