WASHINGTON (AP) — With Russia in mind, the Trump administration is aiming to develop new nuclear firepower that it says will make it easier to deter threats to European allies.

The plan, not yet approved by President Donald Trump, is intended to make nuclear conflict less likely. Critics argue it would do the opposite.

The proposal is spelled out in a policy document, known officially as a "nuclear posture review," that puts the U.S. in a generally more aggressive nuclear stance. It is the first review of its kind since 2010 and is among several studies of security strategy undertaken since Tr...