Ayatollah Khomeini in the context of "Islamic Government"

The 1970s (pronounced "nineteen-seventies"; commonly shortened to the "Seventies" or the "'70s") was the decade that began on January 1, 1970, and ended on December 31, 1979.

In the 21st century, historians have increasingly portrayed the 1970s as a "pivot of change" in world history, focusing especially on the economic upheavals that followed the end of the postwar economic boom. On a global scale, it was characterized by frequent coups, domestic conflicts and civil wars, and various political upheavals and armed conflicts which arose from or were related to decolonization, and the global struggle between NATO, the Warsaw Pact, and the Non-Aligned Movement. Many regions had periods of high-intensity conflict, notably Southeast Asia, the Middle East, Latin America, and Africa.

Geography is an important factor in informing Iran's foreign policy. Following the 1979 Iranian Revolution, the newly formed Islamic Republic, under the leadership of Ayatollah Khomeini, dramatically reversed the pro-American foreign policy of the last Shah of Iran Mohammad Reza Pahlavi. Since the country's policies then oscillated between the two opposing tendencies of revolutionary ardour to eliminate non-Muslim Western influences while promoting the Islamic revolution abroad, and pragmatism, which would advance economic development and normalization of relations, bilateral dealings can be confused and contradictory.

According to data published by RepTrak, Iran is the world's second least internationally reputable country, just ahead of Iraq, and has held that position for the three consecutive years of 2016, 2017, and 2018. Islamism and nuclear proliferation are recurring issues with Iran's foreign relations. In a series of international polls by Pew Research in 2012, only one country (Pakistan) had the majority of its population supporting Iran's right to acquire nuclear arms; every other population polled overwhelmingly rejected a nuclear-armed Iran (90–95% opposed in the polled European, North American, and South American countries), and majorities in most of them were in favor of military action to prevent a nuclear-armed Iran from materializing. Additionally, the majority of Americans, Brazilians, Japanese, Mexicans, Egyptians, Germans, Britons, French, Italians, Spaniards, and Poles (among other national groups) had majority support for "tougher sanctions" on Iran, while majorities in China, Russia, and Turkey opposed tougher sanctions.