"Long standing tenets have not changed from 2010 [nuclear policy review under President Barack Obama] to 2018 [the Nuclear Policy Review released this year]," Trachtenberg said in a speech at the Heritage Foundation. "[The new NPR] enhances deterrence and raises the nuclear threshold."
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Trachtenberg also defended the development of a new low-yield tactical warhead and SLCM as being within the terms of existing nuclear arms reduction treaties and therefore, he claimed, they did not contribute to a new arms race.
Trachtenberg claimed the recommendations of the 2018 review remained "broadly consistent" with the policy of every administration over the past 70 years from President Harry Truman.