Final answer:
Initial attitudes of white soldiers toward the 54th Massachusetts were often negative, stemming from racial prejudices. These perceptions were challenged by the valor displayed by the 54th in battles such as Fort Wagner. Post-war, the civil rights movement was bolstered by the war experiences and treatment of African American soldiers, such as Jackie Robinson.
Step-by-step explanation:
The attitudes of white soldiers towards the 54th Massachusetts were initially based on stereotypical views of black soldiers as being less capable and lazy; attitudes reflected in the opinions of some higher echelon officers. However, the experience of combat and the heroic actions of the 54th Regiment, especially at Fort Wagner, began to change these views. The persistent discrimination and segregation faced by African American soldiers in the Union army did not deter regiments like the 54th from heroically fighting for their cause, as evidenced by accounts of their bravery and sacrifice. Furthermore, the civil rights movement gained momentum from the contributions and treatment of African American soldiers during World War II. Discrimination persisted, as seen in the case of individuals like Jackie Robinson, but the bravery and sacrifice of black soldiers were undeniable and laid a foundation for future desegregation efforts.