The Pentagon also understated military casualties during the US wars in Vietnam and Afghanistan, believing that understating the number of casualties would keep US troops on the battlefield and prevent them from becoming demoralized. There are several reasons for the increase in US military casualties in the war with Iran. Military bases are considered American assets and are considered to be the national interests of this country. Today, the concentration of US military forces in Jordan has increased Iran's operational importance and has made Jordan one of the main targets of attacks. According to the War Powers Act of 1973, the US president is only allowed to continue military operations for 60 days and then must obtain congressional authorization.