The Taliban captured Afghanistan’s third-largest city and a strategic provincial capital near Kabul on Thursday, further squeezing the country’s embattled government just weeks before the end of the American military mission there.

The seizure of Herat marks the biggest prize yet for the Taliban, which has taken 11 of Afghanistan’s 34 provincial capitals as part of a weeklong blitz. The capture of Ghazni cuts off a crucial highway linking the Afghan capital with the country’s southern provinces, which are similarly under assault as part of an insurgent push some 20 years after US and NATO troops invaded and ousted the Taliban government. While Kabul itself isn’t directly under threat yet, the losses and the battles elsewhere further tighten the grip of a resurgent Taliban estimated to now hold some two-thirds of the nation. Thousands of people have fled their homes amid fears the Taliban will again impose a brutal, repressive government, all but eliminating women’s rights and conducting public amputations, stonings and executions. Peace talks in Qatar remain stalled.