Saber Rattling, Nuclear Threat Or An Even More Devastating War?

Feb. 22 (UPI) -- Secretary of Defense James Mattis has asserted on Capitol Hill that the Pentagon needs to invest in low-yield nuclear weapons to counter a Russian strategy of "escalate to de-escalate" -- firing low-yield nuclear weapons with the belief that the United States would not retaliate because it would have to use full-scale nuclear weapons.

Experts don't agree on whether the low-yield option Mattis suggests -- which the Defense Department took off the table in the 1990s -- is the correct deterrence approach, and more importantly, they don't agree that "escalate to de-escalate" is actually the Russian doctrine. Many experts argue that this doctrine does not line up with what they know of Russia's strategy.

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