The Nuclear Deal of 2015 has proved to be a catalyst for Iran to regain its lost preeminence in the Middle East. It has helped end its international isolation, revive its economy and allowed it to play a more dominating role in the region. Its political, economic and military rise has led to an assertive role impacting the unfolding events in the region. Presently, the entire Middle East is in turmoil and Iran, being in the centre having strong potential and backed by favourable regional and global security environment, is undoubtedly the rising power of the region. How this rise would impact the region in general and Pakistan in particular, would depend on how these entities perceive and react to this rise.