Washington, D.C., United States—The Pentagon is about to offer its cyberwarfare technology and capabilities to the service of its NATO allies.

U.S. Defense Secretary Jim Mattis is expected to make the announcement after a meeting with his NATO colleagues later in the week. The decision follows an agreement reached during a NATO summit in the summer. In July, NATO members had agreed to utilize one another’s cyberwarfare capabilities as a way to defend against network cyber attacks.

France, Germany, Spain, the UK, and the US have been some of the NATO members who have had to deal with cyber attacks in the past years. Russia has been the main suspect or perpetrator behind the attacks. Russian hackers and trolls interfered in the US and French presidential elections and in the Brexit, Scottish and Catalonia independence referenda.

“Russia is constantly pushing its cyber and information operations,” said Katie Wheelbarger, a Senior Pentagon official.