"In response to the current outbreak of the COVID-19 virus and recent guidance by the Secretary of Defense, we have modified exercise Defender-Europe 20 in size and scope," the U.S. Army in Europe said.
"As we make the appropriate adjustments, the linked exercises to Exercise Defender-Europe 20 - Dynamic Front, Joint Warfighting Assessment, Saber Strike and Swift Response - will not be conducted," it added.
Saber Strike, conducted since 2010 is usually a major event in the Baltic states involving around 2,000 troops.
"There are many details still being worked and discussed with our Allies and partners. Changes are anticipated to the deployment timelines of Soldiers currently in Europe, redeployment of U.S.-based equipment, and the next Atlantic Resolve rotation. We will continue to provide updates as details become available about these adjustments," the U.S. Army said.