Here is the correct chronological order of the events listed:
1. **Terrorist attack of September 11, 2001.**
2. **U.S. ground forces land in Afghanistan.**
3. **The United States helped form a new government in Afghanistan.**
4. **Taliban rises in power in Afghanistan.**
5. **Taliban rebuilds troops in Pakistan.**
6. **Osama bin Laden was shot and killed.**
7. **The majority of U.S. forces withdraw from Afghanistan.**
8. **The Taliban returns to power, and human rights violations persist.**