Chabahar Port
Chabahar Port () is a seaport in Chabahar located in southeastern Iran, on the Gulf of Oman. It serves as Iran's only oceanic port, and consists of two separate ports named "Shahid Kalantari" and "Shahid Beheshti", each of which has five berths.
2008 U.S.–Iranian naval dispute
To travel through the Strait of Hormuz, which at its narrowest is wide, ships pass through the territorial waters of Iran and Oman under the "transit passage" provisions of the United Nations Convention on the Law of the Sea. Neither Iran or the United States have ratified the convention, but the United States accepts the traditional navigation rules as reflected in the Convention. Iran has stated that it reserves "the right to require prior authorization for warships to exercise the right of innocent passage through its territorial sea." It is unclear if the incident happened in the territorial waters of Iran or Oman.