The Foundation for Defense of Democracies (FDD) is non-profit neoconservative think tank and a registered lobbying organization based in Washington, D.C., United States.

The Qatar diplomatic crisis was a high-profile incident involving the deterioration of ties between Qatar and the Arab League between 2017 and 2021. It began when Saudi Arabia, the United Arab Emirates, Bahrain, and Egypt simultaneously severed their bilateral relations with Qatar and subsequently banned Qatar-registered aircraft and Qatari ships from utilizing their sovereign territory by air, land, and sea; this involved the Saudis' closure of Qatar's only land crossing, initiating a de facto blockade of the country. Tensions between the two sides came to a close in January 2021, following a resolution between the Saudis and the Qataris.