It is unnecessairy source because it does not matter how many soldiers were killed What matters is that the Safavids were deposed Besides that mentioning that information WITHOUT making any remarks about the brutality of the Afghan forces  for example the complete massacre of the Safavid family including women and children as well as the massacres on the civilian population in Isfahan Bam and villages of Khorasan  is considered POV   Besides that you have not shown any sources for your claim that  soldiers were killed   And as for the edits it does not matter what YOU believe it only matters what the Wikipedia rules are You posted a message without editting ANYTHING  thats the same as abusing the articles history as a messageboard Use the REAL messageboard instead