Direct answer: During the first Trump administration (2017–2021), Iran–United States relations were dominated by the "maximum pressure" campaign after the JCPOA withdrawal, marked by extensive sanctions, increased tensions, and limited diplomatic engagement.
Context and key points:
- Policy shift and JCPOA withdrawal: The administration repudiated the 2015 nuclear deal and pursued a hardline strategy, aiming to curb Iran’s nuclear and regional activities.[1][3]
- Maximum pressure and sanctions: Over 1,500 sanctions targeted Iran’s central bank, oil sector, shipping, and other key areas, with secondary sanctions pressuring foreign firms and financial institutions to disengage.[3][1]
- Limited diplomacy and regional posture: Despite sanctions, Iran maintained a stance that negotiations would only occur if sanctions were lifted, while the U.S. increased military presence in the region and engaged in cyber operations related to Iran’s missile programs.[1][3]
- Specific escalations and milestones: Early actions included travel bans on Iranian nationals, decertification of Iran’s compliance with the JCPOA, and subsequent policy shifts toward containment and pressure rather than near-term diplomacy (with occasional signals of readiness for talks from some actors, though overall negotiations were stalled).[3][1]
- Global reactions and alliances: The pressure campaign drew pushback from some U.S. allies and international partners, highlighted by international responses and debates over effectiveness and the broader geopolitical risk landscape.[5][1]
If you’d like, I can pull a concise timeline of major events (2017–2021) and provide a one-page summary with dates, actions, and outcomes. I can also compare this period to the subsequent second Trump administration phase if that helps your research.
Sources
Article Michael R. Pompeo Secretary of State Foreign Affairs October 15, 2018 The end of the Cold War forced new thinking among policymakers and analysts about the greatest challenges to U.S. national security. The emergence of al Qaeda, cybercriminals, and other dangerous entities affirmed the threat of nonstate actors. But equally daunting has been the resurgence […]
2017-2021.state.govDonald Trump’s election produced dramatic change in U.S. policy in 2017. As a candidate, he had blasted the 2015 nuclear agreement between Iran and six world powers as “the worst deal ever negotiated.” If elected, Trump said his number-one priority would be to dismantle the deal, known formally as the Joint Comprehensive Plan of Action (JCPOA).
iranprimer.usip.orgFactbox-Seven key Trump-Iran moments as tensions run high
www.investing.comIran–United States relations during the first Trump administration (2017–2021) were marked by a sharp policy shift from Obama's engagement-oriented approach. Trump began with a travel ban affecting Iranian citizens, and withdrew from the Joint Comprehensive Plan of Action (JCPOA). A broader maximum pressure campaign followed, with over 1,500 sanctions targeting Iran’s financial, oil, and shipping sectors, as well as foreign firms doing business with Iran, severely damaging its economy. The...
wikipedia.nucleos.comDonald Trump’s election produced dramatic change in U.S. policy in 2017. As a candidate, he had blasted the 2015 nuclear agreement between Iran and six world powers as “the worst deal ever negotiated.” If elected, Trump said his number-one priority would be to dismantle the deal.
iranprimer.usip.orgThe January 31 edition of the Iran Media Review considers commentary regarding the lack of messaging from Washington on negotiations.
agsi.org