original: after napier initially gained military control of the region by forcing an agreement with the sindh amirs , his forces attacked the fortress at imamgarh .
simplifications: after napier gained military control of the region , by forcing an agreement with the sindh amirs , his forces attacked the fortress at imamgarh . after napier first gained military control of the region by forcing an agreement with the sindh amirs , his forces attacked the fortress at imamgarh . napier gained military control of the region by forcing an agreement with the sindh amirs . then his forces attacked the fortress at imamgarh . after napier gained military control of the region by forcing an agreement with sindh amirs , his forces attacked the fortress at imamgarh . after napier got the military control of the region by forcing an agreement with the sindh amirs , his forces attacked the fortress at imamgarh . after napier initially gained military control of the region by forcing an agreement with the sindh amirs , his forces attacked the fortress at imamgarh . after napier first got military control of the region by forcing an agreement with the sindh amirs , his forces attacked the fortress at imamgarh . after napier at first won military control of the area by making the sindh amirs agree to a deal , his army attacked the fort at imamgarh .