U.S. Cyber Command FORT GEORGE G. MEADE, Md. , – Estonian and U.S. cyber commands jointly conducted a defensive cyber-operation on Estonian Defence Forces’ networks from September 23 to November 6. The operation, designed to counter malicious cyber actors, strengthened the cyber defense capability of both nation’s critical assets. “Combined operations with our closest allies like U.S. are vital for ensuring security of our services. These kind of operations provide our operators an opportunity to exchange best practices as well as give us objective feedback on our current defense posture in cyber domain. This operation is another successful milestone in our cooperation with U.S. partners,” said Mihkel Tikk, Deputy Commander of Estonian Defense Forces Cyber Command.