Multi-Domain Operations (MDO) is the United States Army's and NATO's transformational concept of operations. It was created to reflect the 2018 National Defense Strategy, which shifted the previous focus of U.S. national security from countering violent extremists worldwide to confronting revisionist powers—primarily Russia and China. MDO's should not be confused with joint operations which promote coordination with other armed services, while MDOs go beyond that to include military and non-military assets. The concept goes by several different names including Multi-Domain Integration (MDI), Multi-Domain Maneuver (Israel), Multi-Domain Deterrence (Taiwan) and Multidimensionalität or Multidimensionality (Germany).