Cubana de Aviación S.A., commonly known as Cubana, is a national airline based in Cuba, as well as the country's largest airline. It was founded in October 1929, becoming one of the earliest airlines to emerge in Latin America. It has its corporate headquarters in Havana, and its main base is located at José Martí International Airport. Originally a subsidiary of Pan American World Airways and later a private company owned by Cuban investors, Cubana has been wholly owned by the Cuban government since May 1959 and celebrated its 80th anniversary in 2009. In the early 1990s, Cubana pursued a multi-faceted strategy to face the challenges posed by the end of the Socialist bloc and the dissolution of the Soviet Union. This strategy targeted a restructuring of Cubana's fleet, the revamping of the airline's technical capabilities, and upgrading the quality of passenger services. Cubana started leasing some Western aircraft (McDonnell-Douglas, Airbus, Boeing) for limited periods of time in the mid-1990s, to help sustain its services to Europe, Canada and some Latin American destinations, given the rapid growth of Cuba's tourism sector. In the early 2000s (decade) Cubana refurbished several of its Il-62Ms to use on some of its international routes (all but one of these aircraft were removed from service in 2011), and in 2004 it embarked on a long-term renovation program. The strategy is based on the purchase of $100 million a year in new generation Russian-built aircraft until 2012. In 2012 Cubana has completely renovated its fleet with new-generation Russian airliners (IL-96, TU-204). As part of its renovation strategy, Cubana has sought to upgrade its technical support capabilities. The airline established a joint venture company with Iberia Airlines of Spain in 2005, to maintain and overhaul Western-built aircraft, such as Airbus and Boeing.