President Barack Obama told The New York Times that U. S. nuclear weapons strategy will be revised with new limits on conditions allowing for use of nuclear weapons.

The newspaper also said that in an interview, the president told the newspaper the policy, to be announced Tuesday, is part of an overall strategy intended to make nuclear weapons obsolete. Under the new policy, the United States will not develop any new nuclear weapons.

New restrictions on U. S. use of nuclear weapons will not apply to "outliers like Iran and North Korea" -- nations that have violated or rejected treaties on nuclear non-proliferation, Obama said.

The new strategy eliminates what the newspaper called deliberate ambiguity in U. S. nuclear policy dating back to the onset of the Cold War. The United States will commit to not using nuclear weapons against non-nuclear states
-- as long as they are in compliance with the Nuclear Non-Proliferation Treaty -- even if they launch biological or chemical weapons attacks, or cyber attacks, on the United States.

There are other ways, short of nuclear warfare, to deter such attacks, Obama further noted.

The president said, "I'm going to preserve all the tools that are necessary in order to make sure that the American people are safe and secure." (With Inputs from Agencies)