Tahmasp II
A previous incursion by Nader had resulted in the sacking of Sangan and a tactical victory against an Abdali army sent against him though he did not move to annex any new territory after his minor triumph and left for Mashad. his plans were disrupted when his Shah, Tahmasp II declared he was a traitor and forced him into a brief conflict which Nader won, establishing his authority over the prince. Having subdued all domestic challenges to himself Nader set out for his long overdue expedition against the Herat.