sentences:  In particular the two countries were allies against the Soviets in Afghanistan and in the expulsion of Iraq from Kuwait in 1991.The two countries have been in disagreement with regard to the State of Israel, as well as the embargo of the U.S. and its allies by Saudi Arabia and other Middle East oil exporters during the 1973 oil crisis (which raised oil prices considerably), the 2003 US-led invasion of Iraq (which Saudi Arabia opposed), aspects of the "War on Terror", and what many in the U.S. see as the pernicious influence of Saudi Arabia after the September 11 attacks.In recent years, particularly the Barack Obama administration, the relationship between the two countries became strained and witnessed major decline.