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Each week, we'll share with you some of the most compelling numbers in our studies.
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40 percent
In CSIS war-games of a Chinese blockade of Taiwan, without U.S. intervention, China’s submarines and mines destroyed 40 percent of inbound ships to Taiwan, even with a maximum effort by Taiwan’s military and U.S. resupply of munitions.
SOURCE: "Lights Out? Wargaming a Chinese Blockade of Taiwan" by CSIS's Mark F. Cancian with Matthew F. Cancian and Eric Heginbotham.
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2 per 10,000
The Integrated Food Security Phase Classification confirmed that famine is present in Gaza, meaning that at least two adults per 10,000 are dying each day due to starvation or malnutrition related mortality.
SOURCE: "Experts React: Starvation in Gaza" by CSIS's Mona Yacoubian, Will Todman, Jon B. Alterman, Caitlin Welsh, Zane Swanson, Michaela Simoneau, Sophia Hirshfield, Hadeil Ali, Andrew Friedman, J. Stephen Morrison, and Leonard Rubenstein.
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1.1 percent
Even under optimistic scenarios without retaliation, U.S. tariff revenues from the tariff levels announced on Liberation Day only amount to approximately 1.1 percent of GDP.
SOURCE: "Trump’s Trade Strategy Takes Shape with Latest EU Trade Deal" by CSIS's Philip Luck and Ina Simonovska.
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300 munitions
Russia has normalized massive, mixed drone‑missile salvos in Ukraine. The average wave size has risen from about 100 munitions in 2022 to nearly 300 in 2025
SOURCE: "The New Salvo War: Russia’s Evolving Punishment Campaign" by CSIS's Benjamin Jensen, Yasir Atalan, and Erik Tiersten-Nyman.
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By the Numbers is composed weekly by Lauren Adler and the External Relations team.
The Center for Strategic and International Studies (CSIS) is a bipartisan, nonprofit organization founded in 1962 and headquartered in Washington, D.C. It seeks to advance global security and prosperity by providing strategic insights and policy solutions to decisionmakers.
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