In 1949, she became a staff member of the Red Army. She was brave, creative and always fulfilled the task of assaulting volunteer soldiers, taking part in many battles to protect her homeland, in which the most prominent was the battle of the famous killer of the evil. Red Earth in 1949 and used a grenade launching a propaganda rally conducted by the French in the district. Thus, the French colonialists were deeply frightened and angry about the activities of the assaulted police force, which was pioneered by Vo Thi Sau, so they tried to pursue it intensively. In December 1949, during a visit to Dat Do, Ms. Sau fell into enemy hands, spent more than a month detained in Dat Do prison and examined Ba Ria road, the enemy used a lot of torture cruelty but They still did not get a testimony of her, then they took her to detention in Chi Hoa. Despite being detained by the enemy, Ms. Sau continued to contact the comrades at the clinic and with the brothers and sisters in the prison forcing them to improve their life in prison. In spite of the fierce and unstoppable spirit of Mrs. Sau and the comrades in prison, despite the lack of evidence, the French colonialists and the henchmen still sentenced her to death and sent her to Con Dao. A courageous, courageous, loyal soldier, Vo Thi Sau was honored to be congratulated by the Party Committee of Con Dao Prison on the Vietnam Labor Party and recognized as a member of the Communist Party. Vo Thi Sau died on the morning of January 23, 1952. When the French enemy took her to the shot, with a facial expression, stepped firmly, raised her head, took up the song of the Internationale, with the spirit of optimistic optimism, she showed the indomitable spirit of the people. communist soldiers. Vo Thi Sau sacrificed her life for the loss of compassion for her comrades, comrades and compatriots; At the same time, her sacrifice was a ferocious accusation against the brutality and plots of the French colonial regime at that time. Vo Thi Sau is the first death row prisoner in Con Dao, the youngest female prisoner, who was conferred the title of AHLL People's Armed Forces on August 2, 1993. It is your bright example to leave for us to follow, we vow to strive for physical training, improve the level in all aspects to contribute to the cause of construction, protect the homeland The Red Sea in particular and the country in general, to develop our country more prosperous, civilized and rich.