In 1672 Muhammad Amin Khan, Subahdar of Kabul, attempted to cross the Khyber Pass, and was defeated. Khan's whole army of 40,000, as well as supplies and other materials, were destroyed. Other disasters followed. At Gandab in 1673, the Afridis defeated a second Mughal army, and in 1674 they defeated a third force at Khapash and drove it into Bajaur.