Harriet Tubman's actions in the Underground Railroad are significant for her role as a daring conductor and abolitionist. By leading many enslaved individuals to freedom, she became a symbol of courage and resilience in the face of extreme danger. Tubman's efforts not only disrupted the institution of slavery but also galvanized the abolitionist movement. Her later involvement with the Union Army during the Civil War further emphasizes her commitment to justice and equality. Tubman's legacy continues to inspire those fighting against oppression and inequality today.