Violence:

• Crimes Against Humanity: The Struggle for Global Justice - Geoffrey Robertson
• Black Earth: The Holocaust as History and Warning - Timothy Synder
• Virtuous Violence: Hurting and Killing to Create, Sustain, End, and Honor Social Relationships - Alan Page Fiske

specifically about ones that pose more against "human rights" based interventionism.

Single Author/Topic Books

• A Republic, Not An Empire - Patrick J. Buchanan. An overview of American foreign policy history from a Conservative non-interventionist perspective
• The Illusion of Victory & The New Dealers’ War - Thomas Fleming. These two large histories of the 1st and 2nd world wars are a good primer for the average person, written for a popular audience.
• The Foreign Policy of the United States - Felix Morley. Similar in outlook to Buchanan’s book, although written 50 years earlier, it is an ‘Old Right’ perspective on American foreign policy which stresses the constitutional case for non-interventionism.
• Hiroshima - John Hersey. A chilling account of six individuals experiences in Hiroshima during and immediately after the dropping of the Atomic bomb
• The Sorrows of Empire - Chalmers Johnson. A general overview of the case that America has become an empire, and what the costs of that role are
• The Limits of Power & Washington Rules - Andrew J. Bacevich. In the former, Bacevich examines the lessons to be learned from the interventions in Iraq and Afghanistan in this century, in the latter, he examines and critiques the critical assumptions upon which American foreign policy has been built for decades
• Foreign Policy, Inc. - Lawrence Davidson. A scholarly account of the use of foreign policy for private (i.e. specific or ‘special’ rather than general or ‘national’ interests) which is short but packed with information.

Anthologies/Collections

• Opposing the Crusader State - edited by Robert Higgs. A collection of scholarly articles from various authors (all from a libertarian and noninterventionist perspective) on topics such as the history of noninterventionism in America, the case against nation-building, and the idea of the ‘democratic peace’
• The Costs of War - edited by John V. Denson. A large collection of extremely important and eye-opening scholarly articles from conservative and libertarian scholars examining the impact of America’s War on liberty.
• The Failure of America’s Foreign Wars - edited by Richard M. Ebeling and Jacob G. Hornberger. A collection of shorter popular pieces explaining the myths and fallacies of various american foreign policy interventions.

Great Wars and Great Leaders: A Libertarian Rebuttal by Ralph Raico is a masterful collection of some of Raico’s most penetrating historical essays.