The Pentagon has a problem. After concentrating on guerrilla warfare for the last decade and a half, the U.S. military is entering a brave new world — one filled with new adversaries. Russia, China, North Korea and others have been building up air, space, ground, and naval forces over the last 15 years, and their progress is showing.

Russia is aggressively building new ships, tanks, and aircraft, while China is rapidly modernizing its air and naval forces. North Korea is honing its nuclear weapons program and constructing new long-range missiles, now capable of hitting the United States. The Pentagon needs a new strategy to deal with this.

Fortunately the military has one, and it’s called the Third Offset Strategy. The First Offset Strategy, initiated in the 1950s, involved countering Soviet superiority in conventional ground forces with cheaper nuclear weapons. The Second Offset Strategy was conceived in the 1980s and involved using American technological superiority to compensate for greater Soviet numbers.