Major nuclear tests by India and Pakistan in 1998 changed the face of the region strategically. This development along with continued tensions in relations between India and Pakistan, developments in U.S. relations with India make the study of the consequences of the two countries’ nuclear program indispensable. This research will try to examine the implications of nuclear tests by India and Pakistan for the national security of the Islamic Republic of Iran. The research will show that Indian and Pakistani nuclear tests initially internationalized security environment in Iran’s eastern region. It also concludes that the region has become less secure as a result of the tests, further heightening international pressures on Iran’s nuclear program.

Keywords: Nuclearization, India, Pakistan, Nuclear Policy, National Security, Islamic Republic of Iran