Russia's February 2022 Invasion of Ukraine

Triggered the bloodiest war in Europe since World War II and raised significant questions about the United States' role in Europe.

CSIS Report Overview

This report examines the U.S. force posture in Europe—including the military capabilities, personnel, infrastructure, and agreements that support defense operations and plans—and makes recommendations for future U.S. posture.

Key Findings

It finds that the United States needs a robust, long-term military force posture in Europe, focused on the North Atlantic Treaty Organization's (NATO) eastern flank, to deter future Russian aggression.