"The reaction of the Arab States to the signing of the peace treaty was far more harsh and swift than anticipated by Egypt or by the United States. Nineteen members of the Arab League immediately met in Baghdad, Iraq, and, on March 31, 1979, issued a communiqué outlining political and economic sanctions against Egypt. By early May, all the Arab countries except Oman and Sudan, close allies of Sadat, had severed diplomatic relations with Egypt. In addition, Egypt was suspended from the twenty-two member Arab League, expelled from the Islamic Conference, and ousted from a number of Arab financial and economic institutions such as the Federation of Arab Banks and the Organization of Arab Petroleum Exporting Countries (OAPEC)."

2002 - Ian J. Bickerton, PhD 
Carla L. Klausner, PhD 

"Following the signing of the peace treaty, Israel completed the first stage of its withdrawal from Sinai on schedule, such that about two-thirds of the peninsula, including the economically important Alma oil fields, had been returned to Egypt by November 1979. During this period there were also important developments in the normalization of relations between the two countries. As early as the summer of 1979, for example, Egypt was visited by leaders of the Israel Broadcast Authority, the Histardrut [Israeli Trade Union], and the Israeli Manufacturers Association, as well as by delegations of businessmen, university professors, and others. The first group of Israeli tourists also traveled to Egypt at this time, and they were met upon their arrival by a welcome sign in Hebrew. Travel in the other direction brought Egyptian businessmen, industrialists, and senior government officials to Israel; and, in addition, the two countries coordinated tourist exchanges, made plans to establish a joint agricultural development company, agreed in principle to reopen the Lod-Cairo rail link, and initiated talks designed to produce cooperative ventures in many other areas. The culmination of these developments came early in 1980, when Israel and Egypt exchanged ambassadors."

1994 - Mark Tessler, PhD 

"The agreement [Peace Treaty] with Israel, was repudiated not only by the Palestinians but by most other Arab states, with greater or lesser degrees of conviction, and Egypt was formally expelled from the Arab League, which moved its headquarters from Cairo to Tunis. [Egyptian] President Sadat was assassinated in 1981 by members of a group who opposed his policy and wished to restore the Islamic basis of Egyptian society, but the main lines of his policy were continued by his successor, Husni Mubarak. In the course of the next few years, Egypt's relations with the United States grew closer, and it received large amounts of financial and military aid."

1991 - Albert Hourani