Protocol II (also Additional Protocol II or AP II) is a 1977 amendment protocol to the Geneva Conventions relating to the protection of victims of non-international armed conflicts. It defines certain international laws that strive to provide better protection for victims of internal armed conflicts that take place within the borders of a single country. The scope of these laws is more limited than those of the rest of the Geneva Conventions out of respect for sovereign rights and duties of national governments.
As of July 2025, the Protocol had been ratified by 170 countries, with the United States, India, Pakistan, Turkey, Iran, Iraq, Syria, and Israel being notable exceptions. However, the United States, Iran, and Pakistan signed it on 12 December 1977, which signifies an intention to work towards ratifying it. The Iranian signature was given prior to the 1979 Iranian Revolution.