Restraint: A New Foundation for U.S. Grand Strategy is a book that was written by Dr. Barry Posen and published in 2014 by Cornell University Press.

[1] Posen is the Ford International Professor of Political Science and director of the Security Studies Program at the Massachusetts Institute of Technology (MIT).

'"[2] Posen describes the current debate about American grand strategy as being between two main philosophies: liberal hegemony and restraint.

"[2] In the second half of the book, Posen explains why restraint would be a better grand strategy to follow than liberal hegemony.

[2] Reviewer William Ruger, writing in The American Conservative, called the book the "defining treatise" for supporters of restraint.