Egyptian Armed Forces led by Ibrahim conquered Hejaz and Nejd and brought that first Saudi state to an end.

[2][3] In the years immediately after the Egyptian Revolution of 1952 relations between Egypt and Saudi Arabia were cordial, driven by mutual suspicion of the Hashemites reigning in Jordan and (especially) Iraq at the time, and continuing from an anti-Hashemite alliance formed by King Abdulaziz of Saudi Arabia, King Farouk of Egypt and President Shukri al-Quwatli of Syria after the foundation of the Arab League in 1945.

Subsequently, Nasser and King Saud co-operated to limit the reach of the Baghdad Pact, which they felt was designed to increase the influence of Hashemite Iraq.

[4] By 1958 this deterioration in the relationship had led to King Saud offering a bribe of £1.9 million to Abdel Hamid al-Sarraj, the head of Syrian intelligence at the time and later Vice-President of the United Arab Republic, to secure the assassination of Nasser.

[5] Thus under President Gamal Abdel Nasser, Egypt, backed by the Soviet Union, came to represent the Non-Aligned Movement and pan-Arabism,[6] and was a nominal advocate of secularism and republicanism.

For example, in the North Yemen Civil War, Nasser supported Arab republicans against the pro-Saudi Yemeni monarchy.

[10] Mubarak's Egypt (1981 — 2011) continued the conservative dictatorship closely allied with the United States that started under Sadat, though sought to repair ties with the Arab nations broken in 1979.

[12] During the boycott, Saudi - Egyptian relations continued in non-political sectors such as culture and some aid, where prince Talal bin Abdulaziz made a rare visit during the boycott by a high level member of the Saudi royal family to Egypt in 1984 as UNICEF envoy and head of the Arab Gulf Program for the United Nations Development (AGFUND), inaugurating projects funded by the agencies,[13] and meeting the influential Minister of Information, Safwat al-Sharif.

[14] During his visit, Talal praised the civilian role of the armed forces and stated how "Egypt is the heart of the Arab World and is indispensable.

This rivalry manifested itself, for example, when U.S. President Barack Obama made a major tour of the Middle East in 2009, soon after assuming power.

[19] Saudi authorities said he was arrested at the King Abdulaziz International Airport near Jeddah on 17 April for possession of 21,000 Xanax anti-anxiety pills, which are banned in the country.

The donation was part of a move by multiple Gulf states to send a large aid package to Egypt.

[25] Saudi Arabia was among the various countries that explicitly welcomed the appointment of the interim government following the July 2013 removal of Morsi from office.

In April 2016, King Salman of Saudi Arabia made a five-day visit to Egypt, during which the two countries signed economic agreements worth approximately $25 billion and also made an agreement to "return" Tiran and Sanafir, two Egyptian-administered islands in the Gulf of Aqaba, to Saudi control.