<Ul> <Li> Some U.S. citizens must obtain an exit stamp at a Residency Office before departing the country . </Li> <Li> Some visitors who plan to stay for more than 10 days must also obtain a residency stamp . </Li> <Li> Visitors who come as part of a government - sponsored tour, upon presentation of proper paperwork from the government, may receive a visa on arrival at Baghdad International Airport for US $80 + 1250 Iraqi dinar . Visitors are not required to obtain any other permits, including for Iraqi Kurdistan, or submit blood tests . </Li> </Ul> <Li> Some U.S. citizens must obtain an exit stamp at a Residency Office before departing the country . </Li> <Li> Some visitors who plan to stay for more than 10 days must also obtain a residency stamp . </Li> <Li> Visitors who come as part of a government - sponsored tour, upon presentation of proper paperwork from the government, may receive a visa on arrival at Baghdad International Airport for US $80 + 1250 Iraqi dinar . Visitors are not required to obtain any other permits, including for Iraqi Kurdistan, or submit blood tests . </Li>

What country is a territory of the us and doesn't require a passport for travel