Jussi Niinistö, PhD, Finland’s defense minister, discusses the significance and deterrent power of the new trilateral defense-cooperation agreement by the US, Sweden and Finland to enhance regional stability and security, his hopes for future military collaboration among the nations, the prospect of re-establishing a Finnish submarine service, new fighter aircraft and the Helsinki-Moscow relationship during a May 8, 2018, interview with Defense & Aerospace Report Editor Vago Muradian. The interview was conducted during an Atlantic Council event at the House of Sweden, which is Sweden’s embassy to the US.