Fiveable

🏴‍☠️Intro to International Relations Unit 4 Review

QR code for Intro to International Relations practice questions

4.4 Case Studies in Foreign Policy

4.4 Case Studies in Foreign Policy

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025
🏴‍☠️Intro to International Relations
Unit & Topic Study Guides

Foreign policy case studies show how nations navigate complex international challenges in practice. From the Cuban Missile Crisis to Brexit, these events reveal how the strategies, tools, and theories covered earlier in this unit actually play out under real-world pressure.

Cold War Era Foreign Policy

Cuban Missile Crisis and Marshall Plan

The Cuban Missile Crisis (October 1962) is one of the most studied examples of crisis management in international relations. When U.S. intelligence discovered Soviet nuclear missiles being installed in Cuba, it triggered a 13-day standoff that brought the two superpowers to the brink of nuclear war.

  • President Kennedy chose a naval quarantine (a blockade by another name, since a formal blockade would be an act of war) around Cuba rather than an airstrike or invasion
  • Behind the scenes, secret negotiations offered a deal: the Soviets would remove their missiles from Cuba, and the U.S. would pledge not to invade Cuba and quietly remove its own Jupiter missiles from Turkey
  • The crisis led directly to the Moscow-Washington hotline, a direct communication link designed to prevent future miscalculations from escalating

The Marshall Plan (1948) represents a very different kind of foreign policy tool: large-scale economic aid used for strategic purposes. The U.S. provided over $13 billion (roughly $170 billion in today's dollars) to rebuild Western Europe after World War II.

  • The economic goal was recovery, but the strategic goal was containment: stabilizing democratic governments so they wouldn't turn to communism
  • It worked on both fronts. Western European economies recovered rapidly, and the program strengthened transatlantic ties that contributed to the formation of NATO (1949) and early European integration

Nixon's China Policy and Middle East Diplomacy

Nixon's Opening to China (1972) is a textbook case of realpolitik, where ideological differences are set aside in favor of strategic interests. The U.S. and China had been hostile since the Communist revolution in 1949, but Nixon saw an opportunity in the growing Sino-Soviet split.

  • Secret diplomacy through Pakistan and Romania laid the groundwork
  • Nixon's visit to Beijing in February 1972 produced the Shanghai Communiqué, which outlined principles for the new relationship while acknowledging disagreements (especially over Taiwan)
  • Full diplomatic recognition of the People's Republic of China didn't come until 1979, under President Carter

The Camp David Accords (1978) showed what sustained presidential diplomacy could achieve. President Carter brought Egyptian President Anwar Sadat and Israeli Prime Minister Menachem Begin together for 13 days of negotiations at Camp David.

  • Egypt became the first Arab state to formally recognize Israel
  • Israel agreed to withdraw from the Sinai Peninsula, which it had occupied since the 1967 war
  • The accords also established a framework for Palestinian autonomy in Gaza and the West Bank, though that framework was never fully implemented
  • The deal fundamentally reshaped Middle East geopolitics and cemented the U.S. role as a mediator in the region

21st Century Diplomacy

Cuban Missile Crisis and Marshall Plan, Cuban Missile Crisis - Wikipedia

Nuclear Diplomacy and Climate Change Agreements

The Iran Nuclear Deal (formally the Joint Comprehensive Plan of Action, or JCPOA), signed in 2015, is a case study in multilateral negotiation and its fragility.

  • Negotiated between Iran and the P5+1 (the five permanent UN Security Council members plus Germany)
  • Iran agreed to reduce uranium enrichment, dismantle key nuclear infrastructure, and allow international inspections. In return, economic sanctions were lifted
  • The U.S. withdrew from the agreement in 2018 under President Trump and reimposed sanctions, even though international inspectors confirmed Iran was in compliance
  • Other signatories tried to preserve the deal, but U.S. withdrawal severely undermined it. This case highlights how agreements that depend on one nation's continued participation can unravel quickly

The Paris Climate Agreement (2015) represents a different model of multilateral diplomacy: voluntary commitments rather than binding obligations.

  • 196 countries signed on, with the goal of limiting global temperature increase to well below 2°C above pre-industrial levels
  • Each country sets its own nationally determined contributions (NDCs) for emissions reduction, rather than having targets imposed from above
  • The agreement included financial provisions to help developing countries transition to cleaner energy
  • The U.S. joined, withdrew in 2017, then rejoined in 2021, illustrating how domestic politics can disrupt international commitments

North Korea Negotiations and US-China Economic Relations

North Korea denuclearization talks (2018–2019) offer a case study in the limits of summit diplomacy with isolated regimes.

  • The historic summits between President Trump and North Korean leader Kim Jong-un were unprecedented, but they produced no lasting agreement
  • North Korea temporarily halted nuclear and missile tests during negotiations
  • Talks stalled over a core disagreement: the U.S. wanted complete denuclearization before sanctions relief, while North Korea wanted a phased, reciprocal approach
  • North Korea has since resumed missile testing, raising questions about whether diplomatic engagement without concrete, verifiable steps can produce results

The U.S.-China Trade War (2018 onward) shows how economic tools become instruments of foreign policy and strategic competition.

  • The U.S. imposed tariffs on hundreds of billions of dollars worth of Chinese goods, citing unfair trade practices like intellectual property theft and forced technology transfer
  • China retaliated with counter-tariffs on U.S. agricultural and manufactured products
  • The conflict expanded beyond trade into technology restrictions (notably against Huawei) and accusations of currency manipulation
  • A partial "Phase One" deal was signed in January 2020, but it addressed only some issues, and broader tensions over technology, security, and influence in Asia continue
  • Global supply chains were disrupted, demonstrating how economic interdependence makes trade wars costly for both sides

Regional Conflicts and Interventions

Cuban Missile Crisis and Marshall Plan, File:Europe Plan Marshall. Poster 1947.JPG - Wikimedia Commons

NATO's intervention in Kosovo (1999) is one of the most debated cases in international relations because it pitted two core principles against each other: state sovereignty and human rights.

  • Serbian forces were conducting ethnic cleansing against the Albanian population in Kosovo
  • NATO launched a 78-day air campaign against Yugoslavia without UN Security Council authorization (Russia and China would have vetoed it)
  • The intervention succeeded in stopping the violence, but its legality remains contested. Supporters argue it was morally justified; critics say bypassing the Security Council set a dangerous precedent
  • Kosovo eventually declared independence in 2008. The case helped develop the Responsibility to Protect (R2P) doctrine, which holds that the international community has an obligation to intervene when a state fails to protect its own people

The Arab Spring (beginning in late 2010) demonstrated how quickly domestic upheaval can reshape an entire region's foreign policy landscape.

  • It started in Tunisia, where a street vendor's self-immolation sparked mass protests that toppled President Ben Ali
  • Protests spread to Egypt, Libya, Syria, Bahrain, Yemen, and beyond, driven by demands for political reform and economic opportunity
  • Outcomes varied dramatically: Tunisia transitioned to democracy (at least temporarily), Egypt's revolution led to a brief democratic period followed by a military coup, and Libya and Syria descended into civil wars
  • International responses were inconsistent. NATO intervened militarily in Libya but took no comparable action in Syria. The U.S. pressured Egypt's Mubarak to step down but maintained close ties with Gulf monarchies facing similar protests
  • This inconsistency highlighted a persistent tension in U.S. foreign policy: the competing priorities of promoting democracy versus maintaining regional stability

US Military Engagement in Afghanistan

The U.S. withdrawal from Afghanistan (2021) marked the end of America's longest war and became a major case study in the limits of military intervention and nation-building.

  1. The initial invasion in 2001 had a clear objective: dismantle Al-Qaeda and remove the Taliban government that harbored it
  2. Over time, the mission expanded into a broader nation-building effort focused on counterinsurgency, building Afghan security forces, and supporting a democratic government
  3. The Trump administration negotiated directly with the Taliban in 2020, agreeing to a withdrawal timeline in exchange for Taliban commitments on counterterrorism
  4. The Biden administration carried out the final withdrawal in August 2021, but the Afghan government and military collapsed far faster than anticipated, leading to a chaotic evacuation from Kabul
  5. The Taliban retook control of the country within days of the U.S. departure

The rapid collapse raised difficult questions: Can outside powers build stable governments in countries with deep internal divisions? When does a military commitment become unsustainable? The Afghanistan case continues to shape debates about the future of U.S. military engagement and counterterrorism strategy.

European Integration and Disintegration

Brexit Process and Implications

Brexit is a case study in how domestic politics can reshape international relationships. In a 2016 referendum, 52% of UK voters chose to leave the European Union, driven by concerns over sovereignty, immigration, and EU regulations.

  • The result triggered years of complex negotiations over withdrawal terms and the future UK-EU relationship
  • Domestically, Brexit caused significant political turmoil: multiple prime ministers, parliamentary deadlock, and deep public division
  • The UK formally left the EU in January 2020, followed by a transition period
  • A Trade and Cooperation Agreement signed in December 2020 established the new relationship, but it introduced trade barriers that hadn't existed during EU membership
  • Brexit raised broader questions about the durability of regional integration projects and whether other member states might follow a similar path (so far, none have)

EU Expansion and Challenges

EU enlargement represents the other side of the integration story: using membership as a tool to promote stability and democracy across Europe.

  • The biggest wave came in 2004, when 10 new members joined, mostly from Central and Eastern Europe (including Poland, Hungary, and the Czech Republic). Bulgaria and Romania followed in 2007, and Croatia in 2013
  • The promise of EU membership gave these countries strong incentives to adopt democratic reforms, rule of law standards, and market economies during the accession process
  • However, enlargement also created new challenges. A larger, more diverse EU struggled with decision-making efficiency, economic disparities between older and newer members, and debates over migration policy
  • Some newer members, particularly Hungary and Poland, have since clashed with EU institutions over democratic backsliding, raising questions about whether the EU has effective tools to enforce its values after a country has already joined
  • Ongoing accession talks with Western Balkan countries and Turkey face significant political and economic hurdles, and progress has been slow