Here’s how the Islamist group rebuilt and what it wants. The fundamentalist force aims to install Islamist law across the country. Now they have gained control of the country, will it finally happen? And what would the repercussions worldwide? Derek Hawkins provides an in-depth guide of the Taliban's principles and how they gained the strength to take over Afghanistan. Given the quickly evolving situation in Afghanistan, some of the events depicted in this story may have changed since the time of publication.