MOSCOW—A Taliban delegation in Moscow said on Friday that the group controlled over 85 percent of territory in Afghanistan and reassured Russia it would not allow the country to be used as a platform to attack others. Foreign forces, including the United States, are withdrawing after almost 20 years of fighting, a move that has emboldened Taliban terrorists to try to gain fresh territory in Afghanistan. That has prompted hundreds of Afghan security personnel and refugees to flee across the border into neighboring Tajikistan and raised fears in Moscow and other capitals that Islamist extremists could infiltrate Central Asia, a region Russia views as its backyard. At a news conference in Moscow on Friday, three Taliban officials sought to signal that they did not pose a threat to the wider region however. The officials said the Taliban would do all it could to prevent ISIS terrorist group operating on Afghan …