What is the number one obstacle that harriet Tubman faced?

The number one obstacle Harriet Tubman faced was the constant threat of capture and violence while leading enslaved people to freedom via the Underground Railroad. As a fugitive herself, she risked her life not only in her own escape but also in returning to help others, navigating dangerous territories and evading slave catchers. Additionally, she had to overcome societal norms and legal barriers that viewed her efforts as criminal acts. Despite these challenges, Tubman's courage and determination made her a prominent figure in the fight for freedom.