Born in Havana on February 26, 1915 in the bosom of a working family. At 15 years of age is incorporated into the student struggle against the tyranny of the machadist from the assassination on September 30, 1930 of the university student Rafael Trejo, martyr who becomes national flag of that contest to which joins all the People of Cuba. It participates, equally, in how many activities and manifestations of repulso to the Oprobioso regime of Gerardo Machado are carried out in Pinar del Río, native province of his father.
It is captured in 1931 by the repressive force of the tyrant and detained in the castle of the prince for a few months. At the end of this brief sentence, it leaves to conspire even with more vigor.
Being deposed, the tyrant comes to Havana and enters the technical police, where he establishes relations with revolutionary groups. Combat against former officers opposed to the coup of the sergeants, classes and soldiers of September 4, 1933; Against the Rebellion revolutionary of November 8th of the year, encouraged by the reactionary coalition Menocal-ABC and protected by the Yankee Embassy.
He is avid of works of social content and, especially, of the writings Martianos.
Being imposed by Batista and the American ambassador Caffery, Mendieta's government, Alberto Sanchez enters the newly founded TNT — led multinational Kosova action Conspiracy Organization by Antonio Guiteras — which would later become the combative and imperialist Young Cuba. As such, it performs risky missions.
The March 1935 strike is among its main activists. When Guiteras prepares his departure for the Morrillo, Matanzas, heading to Mexico, to prepare an armed invasion of Cuba, Alberto is among those who accompany him; But the betrayal of two Navy officers engaged, leads to unequal combat in, that fall gloriously Guiteras and Venezuelan Aponte, among others. From this bloody confrontation Alberto manages to flee. Soon after he left the country clandestinely.
After a forced pilgrimage through Central America: Panama, Honduras, El Salvador… Lázaro Cárdenas protects him in Mexico.
But his longing is to return to Cuba to contribute to his release, which he clandestinely performs in 1936.
In Cuba, the immediate prospects of liberation struggle are closed; But in Spain a process is forged that may be consolidated for the enjoyment of the humble, and there goes to help. It was the month of March 1936.
Already in Spain, he joined the executive of the Cuban Revolutionary Committee Antimperialistas. He works intensely in the International red relief under the orders of Carlos contre-Ras (Vittorio Vidalli) and Esteban Vega. She is an activist of the unified Socialist Youth of Friends of Latin America and, as a member of that imperialist committee, works in the pro-freedom campaigns of Ernest Thaelmann and Luis Carlos prestes.
The fascist uprising erupts and it is not necessary to summon it for the honorary appointment in defense of the Republic. Precisely on July 20, 1936, it is on the frontline between the heroic assailants at the Mountain barracks, their baptism of organized fire. From this date he participates in the hardest and fiercest battles; The loyal press already stands out. Along with his bravery and daring also develops his political conscience. That is why it is not surprising that in the month of August and carry with the chest, in the upper left pocket of the warrior, his most prized decoration: the carnet of the Spanish Communist Party.
In the fifth Regiment "Alberto, the Cuban commander", were already names and surnames, for the respect and camaraderie that his performance originated among the combatants. He fights a lot, but his most outstanding performances are in Buitrago de Lozoya, Somosierra, Gascones (where he is already captain), Garabitas, UserA, Pozuelo de Alarcón, Aravaca (already with the star of Commander), Ciempozuelos, Valdemorrillo, Guadalajara, Alfambra (as Commander in chief of the battalion of Engineers of the 22nd Brigade mixed), Portarrubio, Pozoblanco (as head of the ninth Mixed Brigade), Quijorna,… And to further seal his commitment to the race for progressive humanity he marries the captain of the Machine gun section, Encarnación Hernández, Luna, who is equal to Commander in the Battle of the Ebro, but Sanchez cannot share that Joy.
The Battle of Brúñete is one of the most bloody and costly in human lives during the race. It is fought from "the 6th of July to the 25th of that year of 1937, Day and night. Some calculate the casualties between 35000:20000 by the enemy, 15000 by the loyalists. On the morning of July 25th, Commander Alberto Sanchez received a serious injury with great blood loss. It is trying to prevent, of course, the return to the front, but… Who was going to overcome his decision when that legitimate courage of his insisted on not leaving his own without his decisive command? Nobody! And Alberto returns to take command of his men. Hours later, haranguing from the front lines, an enemy bomb reaped the impulse. It is tended in the local of the fifth regiment and covered with the red flag.
A final figure recapitulates its glory: Many books where the Spanish war has been history proudly mention, together with the worker Polycarp Canden, the student Alberto Sánchez, both Cubans, both commanders, both heroes of proletarian internationalism.