 With the emergence of Bangladesh as a separate state, the "Two-Nation Theory/Pakistan Movement" as well as the state of Pakistan itself had received a severe negative blow to its reputation and questions arose in the Iranian establishment as to whether the residual western part of Pakistan could hold together and remain a single country.Events of this period caused significant perceptional changes in Tehran regarding Pakistan.When a widespread armed insurgency broke out in Pakistan's Balochistan province in 1973, Iran, fearing the Baloch insurgency might spill over into its own Sistan and Baluchistan Province, offered large-scale support.