 Complete the following phrase:  The bridge was closed in May 1997 when Taliban forces attacked the city of Mazar-i-Sharif, and Uzbekistan feared the disorder could spread across the border. In particular it feared that it could be used by Islamist militants to assist the Islamic Movement of Uzbekistan in overthrowing Uzbek President Islam Karimov. After the fall of Mazar-i-Sharif during the 