Articles

416 Items

People practice combat skills in urban areas during a training course for national resistance of the Municipal Guard near Kyiv, Ukraine, on Jan. 19, 2024.

AP Photo/Evgeniy Maloletka

Journal Article - International Security

A “Nuclear Umbrella” for Ukraine? Precedents and Possibilities for Postwar European Security

| Winter 2023/24

Europe after the Russo-Ukrainian War must develop a new security structure to defend against any Russian aggression. The safest option is a non-offensive, confidence-building defense. This option includes proposals such as the “spider in the web” strategy and the “porcupine” strategy to provide for European security in a region threatened by Russian expansion—without relying on the threat of nuclear war. 

Flowers bloom around graves of World War I soldiers prior to a foundation laying ceremony at Loos British Cemetery in Loos-en-Gohelle, France, Thursday, May 4, 2023.

AP Photo/Michel Spingler)

Journal Article - Quarterly Journal: International Security

The Peril of Peaking Powers: Economic Slowdowns and Implications for China’s Next Decade

| Summer 2023

Peaking great powers facing a slowdown in growth are likely to try to violently shake up the world. These findings amend classic theories of great power conflict. They help explain some of the most consequential geopolitical events in modern history. And they have ominous implications for contemporary Chinese foreign policy. 

A set of NanoRacks CubeSats is photographed by an Expedition 38 crew member after the deployment by the Small Satellite Orbital Deployer (SSOD).

NASA

Journal Article - Quarterly Journal: International Security

Small Satellites, Big Data: Uncovering the Invisible in Maritime Security

    Authors:
  • Saadia Pekkanen
  • Setsuko Aoki
  • John Mittleman
| Fall 2022

The world’s oceans have always provided ships with room to hide. New technology is changing that. Small satellites now collect terabytes of global data daily. Computational analytics can mine that data as humans cannot. Increasingly, this information expands the ability to identify and track ships and their activities, including those affecting national and international security. 

A security guard stands near a sculpture of the Chinese Communist Party flag at the Museum of the Communist Party of China on May 26, 2022, in Beijing.

AP Photo/Ng Han Guan

Journal Article - Quarterly Journal: International Security

Strategic Substitution: China’s Search for Coercive Leverage in the Information Age

    Author:
  • Fiona Cunningham
| Summer 2022

After the mistaken U.S. bombing of the Chinese Embassy in Belgrade in 1999, China turned to information-age weapons to create a risk of escalation to nuclear war with the United States. This shift helps compensate for its conventional military inferiority.

In this image provided by the U.S. Marine Corps, evacuees wait to board a Boeing C-17 Globemaster III during an evacuation at Hamid Karzai International Airport in Kabul, Afghanistan, Monday, Aug. 30. 2021.

Staff Sgt. Victor Mancilla/U.S. Marine Corps via AP

Journal Article - Quarterly Journal: International Security

Narratives and War: Explaining the Length and End of U.S. Military Operations in Afghanistan

    Author:
  • C. William Walldorf Jr.
| Summer 2022

A new theory of war duration suggests that strategic narratives explain why the U.S. war in Afghanistan endured and ended. A robust anti-terrorism narrative generated audience costs for presidential inaction. As the narrative weakened, these costs declined, and the war ended.

Meeting of the President of Ukraine with the President of the European Commission and the High Representative of the EU for Foreign Affairs and Security Policy on April 8, 2022

Wikimedia Commons/ President of Ukraine Volodymyr Zelenskyy Official website

Magazine Article - Arms Control Today

Negative Security Assurances After Russia’s Invasion of Ukraine

| July 07, 2022

On February 24, the international community took a catastrophic blow. Already battered by two years of the COVID-19 pandemic and deteriorating interstate relations, it stood in horror as Russian forces unleashed an unprovoked war on a neighboring country. Russia’s decision to invade Ukraine and reject Ukraine’s very existence as a separate state is ominous and highly momentous for the future of the world order.

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Newspaper Article - Harvard Gazette

Russia’s Remaining Weapons Are Horrific and Confounding

| Mar. 23, 2022

Along with concerns over the possible deployment of tactical nuclear weapons, the Biden administration is now warning that the Russian military may launch a chemical weapons attack in Ukraine. Russia has used chemical weapons during past conflicts, notably in Chechnya and Syria, in violation of international law. Russian officials denied Biden’s accusation during a U.N. Security Council meeting Tuesday.

North Korean leader Kim Jong Un, second from right, inspects the preparation of the launch of a Hwasong-14 ICBM in North Korea on July 4, 2017.

AP Photo

Journal Article - Quarterly Journal: International Security

Defending the United States: Revisiting National Missile Defense against North Korea

| Winter 2021/22

The costly Ground-based Midcourse Defense system remains unproven and unreliable in deterring North Korea’s threat to use intercontinental ballistic missiles. An airborne boost-phase intercept system may offer an alternative defense against North Korea without threatening Russian or Chinese deterrents.

OPCW Pays Tribute to All Victims of Chemical Warfare at Day of Remembrance

Wikimedia CC/OPCW

Journal Article - Journal of Conflict Resolution

The Two Faces of Opposition to Chemical Weapons: Sincere Versus Insincere Norm-Holders

| 2021

The authors' findings advance a specific debate on the strength of weapons taboos, while their conceptualization of insincere norm-holders and methodological application have broader implications for how scholars might think about and measure norms in international politics.