General Joseph F. Dunford, chairman of the joint chiefs of staff, addressed a crowd at the Brookings Institute last week, in which he discussed the challenges faced by the American military and how best to face them in the coming years.

The Brookings Institute, a Washington DC based think tank, gave Dunford the opportunity to express his positions on threats like Russia, China, Iran, North Korea, and Islamic Extremism in a fairly informal conversation with Brookings Senior Fellow, Michael O’Hanlon, co-director of the Center for 21st Century Security and Intelligence.

“I can’t imagine any conflict that we would be involved with in the future being narrowly focused in one region. It would have transregional implications right away and then multifunctional [ones],” General Dunford said of the state of modern combat operations throughout the world.

Dunford emphasized that, although the five groups he listed above each represent legitimate threats to the safety and well-being of the United States, a sixth could be added to the list: “solvency.”