Complex sentence: Ghazi Mohammad Jan Khan Wardak staged an uprising and attacked British forces near Kabul in the Siege of the Sherpur Cantonment in December 1879, but his defeat there resulted in the collapse of this rebellion.
Split into simpler sentences: Ghazi Mohammad Jan Khan Wardak staged an uprising and attacked British forces near Kabul in the Siege of the Sherpur Cantonment in December 1879. He has besieged the British but as he failed to maintain the Siege of Sherpur on long-term, it resulted in the collapse of this rebellion.