Thanks to the petroleum discovery in 1959, the situation of Libya change drastically. Overnight passage of being an immersed country in the poverty to be one of the richest countries of the African Continent. Nevertheless, the control of the business of petroleum was in the hands of seven great English and North American companies that methodically handled near the seventy percent of the sale of petroleum consequently only one small part of the gains it remained in the country. One decade later, the 1 of September of 1969, a group of officials who comprised of the faction of left of I exercise Libyan, led by Colonel Muhamar El-Gadafi, they overthrew to old King Idris, who did not listen, the voices that demanded economic and social changes to him at political level. Manifestations that every day took but force as the enormous wealth produced by petroleum transformed the life of the country. The military revolutionary advice, led by Muhamar El-Gadafi I indicate that revolution intended: Unit, Freedom and Socialism in Libya, and simultaneously control a message of warning to the western world that any contrarrevolucionario attempt would be squashed implacable and decisively.
Also announcement the creation of a Socialist Republic which would be called Republic of Arab Libya . This way, Libya, one of the richest states and destined to being the maximum petroleum producer of the region in the future, end up being united to the revolutionary States socialist Arabs. This situation would reframe the future relations of the revolutionary government with the West, that until that moment was optimal. Especially with the United States and England that had many commercial and military interests in Libya. Being the main supplying country of arms for Libya, England had signed months back to the blow, a millionaire contract of sixty tanks type chieftain, and an indetermine number of antiaircraft arms and artillery for Libyan Armed Forces.
In addition, of a contract to install a complex radar network and a system of surface-to-air air defense without counting on the military installations that England tapeworm in the country. Aside from these contracts, England had to him granted to Libya several credits without interest, of 352,000 pounds in the year of 1949 and 250,000 pounds in 1951. On the other hand the United States counted on a military training base strategically important to have control in the Mediterranean. It is not possible to be left a side the numerous aid for technical attendance and economic development that both countries had granted to him to Libya. Between 1949 and 1959 England I contribute more than 21 million pounds and only in 1959, the United States took paid to the country about 25 million dollars. Against the new S-events very difficult to the future indicate what serious one of these relations especially if one considers that these new Arab socialist regimes were not in favor of any class of foreign interferences in his territory and but if they provenian of the West.