International Security & Defense

1357 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. 

Image of Vladimir Putin standing in front of a podium

AP Photo

The Arleigh Burke-class guided-missile destroyer USS Dewey (DDG 105), front, and the Independence-variant littoral combat ship USS Gabrielle Giffords (LCS 10), rear, conduct joint operations with the Japan Maritime Self-Defense Force destroyer JS Akebono (DD-108) in the South China Sea

U.S. Navy photo by Aviation Electronics Technician 2nd Class Lucas Herzog

Report - Belfer Center for Science and International Affairs, Harvard Kennedy School

Navigating China’s Opportunistic Approach to Overseas Naval Base Acquisition

| November 2023

This report, by Maxwell Simon (MPP '23) and Jayaram Ravi (MPP '23), explores the drivers of setback and success that China has encountered in the process of developing dual-use and military-dedicated naval installations abroad. It looks at cases where China has considered or actively pursued military-dedicated installations to characterize Beijing’s general approach to overseas naval base acquisition.

 Protesters on demonstration bus interacting with police and pedestrians during 918 Shenyang Anti-Japan Demonstration, September 18, 2012.

Wikimedia Commons

Journal Article - Quarterly Journal: International Security

To Punish or Protect? Local Leaders and Economic Coercion in China

| Fall 2023

During foreign policy disputes involving China and some of its most important commercial partners, why do local leaders punish or protect foreign commercial actors? The decision comes down to the political incentives facing each local leader. Understanding this variation is important because how local leaders treat foreign businesses can influence the overall effectiveness of the Chinese government’s economic coercion against foreign states. 

"Speaking of Leaks," cartoon, Independent, January 29, 1917.

Wikimedia Commons

Journal Article - Quarterly Journal: International Security

"Wars without Gun Smoke": Global Supply Chains, Power Transitions, and Economic Statecraft

    Authors:
  • Ling S. Chen
  • Miles M. Evers
| Fall 2023

Power transitions affect a state’s ability to exercise economic statecraft. As a dominating and a rising power approach parity, they face structural incentives to decouple their economies. This decoupling affects business-state relations: high-value businesses within the dominant power tend to oppose their state’s economic statecraft because of its costs to them, whereas low-value businesses within the rising power tend to cooperate because they gain from it. 

Visitors tour past military vehicles carrying the Dong Feng 41 and DF-17 ballistic missiles at an exhibition highlighting President Xi Jining and his China's achievements under his leadership, at the Beijing Exhibition Hall in Beijing on Oct. 12, 2022.

AP Photo/Andy Wong

Analysis & Opinions - Foreign Affairs

China’s Misunderstood Nuclear Expansion: How U.S. Strategy Is Fueling Beijing’s Growing Arsenal

    Authors:
  • M. Taylor Fravel
  • Henrik Stålhane Hiim
  • Magnus Langset Trøan
| Nov. 10, 2023

Among the many issues surrounding China’s ongoing military modernization, perhaps none has been more dramatic than its nuclear weapons program. For decades, the Chinese government was content to maintain a comparatively small nuclear force. As recently as 2020, China’s arsenal was little changed from previous decades and amounted to some 220 weapons, around five to six percent of either the U.S. or Russian stockpiles of deployed and reserve warheads.

President Joe Biden delivers remarks about government regulations on artificial intelligence systems during an event in the East Room of the White House, Monday, Oct. 30, 2023, in Washington.

(AP Photo/Evan Vucci)

Policy Brief

Action on AI: Unpacking the Executive Order’s Security Implications and the Road Ahead

| Nov. 08, 2023

On October 30, 2023, President Biden issued the Executive Order on the Safe, Secure, and Trustworthy Development and Use of Artificial Intelligence, aimed at realizing the benefits of AI, while mitigating critical risks. This article provides an overview of its key national security initiatives and explores issues relevant to implementation.

Ukrainian soldiers sit on an armoured vehicle as they drive on a road between Izium and Lyman in Ukraine, Tuesday Oct. 4, 2022.

AP Photo/Francisco Seco

Analysis & Opinions - Belfer Center for Science and International Affairs, Harvard Kennedy School

Ukraine’s Defense: A Whole-of-Society Effort Demanding Additional Support

| Oct. 13, 2023

For Ukraine to maintain its defense and decisively thwart Russia’s invasion, it will take steadfast commitments from Western allies providing both state-of-the-art equipment and basic warfighting needs, local industry leaders and factory workers readying equipment for the frontlines and developing innovative technologies, and civilian volunteers tirelessly filling in the remaining gaps.