Che Guevara
In Guevara's private writings from this time (since released), he displays his growing criticism of the Soviet political economy, believing that the Soviets had "forgotten Marx". This led Guevara to denounce a range of Soviet practices including what he saw as their attempt to "air-brush the inherent violence of class struggle integral to the transition from capitalism to socialism", their "dangerous" policy of peaceful co-existence with the United States, their failure to push for a "change in consciousness" towards the idea of work, and their attempt to "liberalize" the socialist economy. Guevara wanted the complete elimination of money, interest, commodity production, the market economy, and "mercantile relationships": all conditions that the Soviets argued would only disappear when world communism was achieved. Disagreeing with this incrementalist approach, Guevara criticized the "Soviet Manual of Political Economy", correctly predicting that if USSR did not abolish the law of value (as Guevara desired), it would eventually return to capitalism.
Che Guevara
In Algiers, Algeria, on February 24, 1965, Guevara made what turned out to be his last public appearance on the international stage when he delivered a speech at an economic seminar on Afro-Asian solidarity. He specified the moral duty of the socialist countries, accusing them of tacit complicity with the exploiting Western countries. He proceeded to outline a number of measures which he said the communist-bloc countries must implement in order to accomplish the defeat of imperialism. Having criticized the Soviet Union (the primary financial backer of Cuba) in such a public manner, he returned to Cuba on March 14 to a solemn reception by Fidel and Raúl Castro, Osvaldo Dorticós and Carlos Rafael Rodríguez at the Havana airport.