Domain knowledge that Guevara gained by staying in Guatemala and preparing was also of significant importance to sharpen the technical skills he needed to possess to succeed. Two of the most important aspects that Guevara aimed to gain through the domain knowledge were:

To familiarize himself with the rules with which a revolution or change within different societies operates in differing environments and the practical wisdom to compete in and change the negative aspects of the chosen environment; and Prior experience and knowledge of how revolutions succeed is high.

Another aspect that is very visible in Guevara's approach, particularly his military strategies is the aspect of experimentation. Experimentation, pertinent to the circumstances that Guevara underwent, can be referred to as trying out new ideas that had not been tested in the real world. Certain aspects that motivated Guevara to experiment with new ideas were:

He knew that even if he filed, the knowledge would help him gain the experience he needed to ring about the right kind of change;

The risks involved in trying out the new ideas, military and social, were minimal at best; and,

He understood that failure, setbacks and successes were part of any and every revolution and were necessary for its longevity and for loyalty from its practitioners

It was n 1954 when Guevara traveled to Mexico City and rekindled his association with some of the major exiles that he had met and helped escape in Guatemala. The exile who played the most prominent influence on Guevara was Nico Lopez who introduced him to the brothers Raul Castro and Fidel Castro. The latter of the two was a revolutionary head who was planning to end the autocratic rule of Fulgencio Batista and started the '26th of July Movement' for that purpose. Guevara recognized this movement as one that was similar to his aims and joined it the same day that he met the brothers

The fight against the combatants of Batista was led by Castro in late 1956 from Cuba through the Granma which was an old and abandoned cabin ship. Guevara had already undergone military and guerilla warfare training even though he was in the army as the physician. Guevara was already acknowledged as the best guerilla combatant in the training and numerous references quote Guevara explaining the scene as the most blood-wrenched he had ever seen; so much so that this was the first time that he abandoned his physician tools and picked up a war weapon and engaged in the battle, transitioning from a physician to a warrior

In an effort to spread the movement's purpose, Guevara analyzed the initiation point of the autocracy and concluded that it was the U.S.-controlled colonies that were the main cause of the autocratic militant rule in not only Latin America but across the world. So in essence, his aim to overthrow against Batista, who he called a puppet ruler for the U.S., was actually an effort to end the indirect U.S. dominance in the region.

To further this purpose, in 1964, Guevara visited New York City with an entire panel from Cuba and addressed the United Nations. His speech to the United Nations that year is known as one of the most heartfelt and truthful in the history of speeches. He fearlessly disapproved of the lackluster efforts of the United Nations to end the ruthless state of "apartheid" that plagued the region of South Africa. Furthermore, he criticized the United States every openly on their policies against the black people in their community saying:

"Those who kill their own children and discriminate daily against them because of the color of their skin; those who let the murderers of blacks remain free, protecting them, and furthermore punishing the black population because they demand their legitimate rights as free men -- how can those who do this consider themselves guardians of freedom?"

Che Guevara also made appearances on various TV shows, one of which "Face the Nation" was aired on CBS Sunday news at the time. In this program he was accompanied by numerous prominent American personalities like Malcolm X and U.S. Senator Eugene McCarthy. Malcolm X has been quoted as stating that Che Guevara was "one of the most revolutionary men in this country right now" and giving Guevara his respect and admiration for all his efforts

Che Guevara revolution formation was inherently dependent on the outcome of the evaluation. He used his evaluation and assessment skills to:

Declaring his ideas and philosophies on what was needed,

Test his ideas by talking to...

Many researchers assert that this approach was one of the main reasons why Che Guevara is such a legendary revolutionary leader. He was able to bring together what was needed at the time and what was beneficial for the future together by simple evaluation of the conditions he was facing
Furthermore, many researchers further assert that Che Guevara's elaborative approach helped him attain the kind of change and revolution he aspired to get as quickly as he did. Many researchers assert four main reasons for that, which are:

Extended planning covering every aspect of the social structure, positive aspects and negative aspects;

Constant brainstorming to find solutions to the problems;

Constant feedback and testing of ideas;

Actual startup of the revolution;

Voicing the need and application of the idea and the revolution;

Focusing on all political and social feedback to initially create and steadily formalize organizational procedures needed for the revolution; and,

Focusing on trial and error procedures in order to constantly change the procedures to attain quicker and prominent results in the form of changes in eth political and social structures.

Conclusion

Che Guevara has been claimed to be a hero by many and a slaughterer by many. His efforts like any other controversial leader are open to interpretation.

Nelson Mandela has talked about Che Guevara in the positive sense and has called him "an inspiration for every human being who loves freedom."

Jean-Paul Sartre states that Guevara was "not only an intellectual but also the most complete human being of our age."

The state of Cuba still loves respects and even adores Che Guevara and claims him to be their savior, their hero. He has been sculpted on the $3 Cuban Peso and the national anthem for Cuban school going children is the oath "We will be like Che"

. Argentina pays tribute to the native revolutionary leader through naming schools after him, building his statues and building museums.

In the contrary, there are many who believe that Che Guevara failed miserably in attaining his purpose or his revolution and was only able to present himself as a heartless assassin. There are many who claim that the militant rule got even more brutal and ruthless due to the introduction of the revolution by Guevara and the revolution did not eradicate the militant rule but made it stronger. There are also many who claim that the revolution initiated by Guevara was the reason for prolonged conflict in Latin American for many of the years to follow. Many people in the opposition refer to Guevara as "the butcher of La Cabana"

Despite all of the hatred and controversy that the legend of Che Guevara still faces, there is no denying the visibly global legacy he leaves behind in the form of the high-contrasted monochrome illustration or image of his face on different, shirts, caps, posters, and accessories in the form of bracelets or tattoos which further contributes to his influence in today's society as both a political and culture icon. The irony however, in this form of legacy is that he is now being showcased on the very platform of consumerism that he had spent his life fighting against