Martin Luther King Jr. faced numerous challenges during the Civil Rights Movement, including systemic racism, violent opposition from segregationists, and legal obstacles. His commitment to nonviolent protest often put him and his followers at risk of arrest and physical harm. King also encountered tension within the movement, including disagreements over strategies and timelines. Despite these difficulties, he remained a powerful advocate for social justice and civil disobedience, leading significant events like the March on Washington and delivering his iconic "I Have a Dream" speech.