Pre-War Army Missions: Cuba & The Philippines

From US Army CMH

  Pacifying the Moros in the Philippines, 1902-1913

From US Army CMH

  The Mexican Expedition, 1916–1917

From US Army CMH (PDF)

  Joint US Army-Navy War Planning on the Eve of the First World War

U.S. Army War College

  America's Turn From Neutrality to Intervention, 1914-1917

From the Great War Society Quarterly, Relevance

 America's Official Reasons for Declaring War

What the Public Was Told

  Joining the Great War, April 1917–April 1918

From US Army CMH (PDF)

  The U.S. Army in the World War I Era

From US Army CMH (PDF)

  The U.S. Army in World War I Fact Sheet

From US Army CMH (PDF)

  Planning the AEF:

The Need for an Expeditionary Force

  Planning the AEF:

How Large? & Where to Deploy?

  Planning the AEF:

The Mission and Beginnings of the AEF

  Troop Deployment: WWI vs WWII

From US Army CMH

  Lafayette, We are Here! The Yanks Arrive in Europe

Contributed by Raquel Hendrickson

   The United States Marine Corps in the World War

An Excerpt from Edwin Simmon's US Marines: A History

   Organizing the Marine Brigade

USMC University Monograph (PDF)

   Those "Other" U.S. Marines in the First World War

From Roads to the Great War

  African American Soldiers in WWI

From the Library of Congress

  More Than Numbers: Americans and the Revival of French Morale in the Great War

Col. Robert Doughty's article from Army History

  AEF Fact Sheet

Manpower, Organization and Casualties

  Learning Lessons in the American Expeditionary Forces

General, Unit and Operational Articles

  Tanks with Infantry: Lessons from the World War

By Maj. D.D. Eisenhower

  General Order 203: November 12, 1918

Pershing Thanks the AEF

  General Pershing's Letter of Appreciation to His "Fellow Soldiers"

Pershing's More Personal Thanks to the AEF

  How the AEF Experience Prepared America For the Greater Challenges Ahead

An Excerpt from John Eisenhower's Yanks

  The AEF Way of War

by Mark Ethan Grotelueschen

 Company Level Leadership in the AEF

Paper at US Army CGSC, PDF File

  Questionable Training Methods for the AEF

From Parameters Magazine

 Tactical Effectiveness of the 165th Infantry, Rainbow Division

Paper at US Army CGSC, PDF File

 What Did Sgt. York Do in the Argonne?

Military History Magazine Article by Col. Doug Mastriano

   The Infantry in Battle

Case Studies of the AEF Put Together Under Geo. Marshall's Supervision

  Adapting to Siberia

August 1918 - April 1920
U.S. Army Study

  Delay at Montfaucon

26-27 September 1918
Key Event in Meuse-Argonne Offensive

  Breakdown of Divisional Artillery: The 35th Division

An Excerpt from Robert H. Ferrell's Collapse at Meuse-Argonne

     Signal Corps in the Field

From the Center for Military History

   German Defensive Plan at Belleau Wood

Excerpted from USMC Bulletin Fortitude

  Setback at Fismette

Study of a Fiasco by Edward Lengel

  26th Division Scouts Eliminate a Block at St. Mihiel

At Military.com

  The Strategic Threat Presented by the AEF

German Army Group C Analysis

   The Influenza Pandemic's Impact on the U.S. Military in World War I

by CDR David Thompson, USNR

  Chemical Warfare in World War I: The American Experience

Leavenworth Paper from the Command & General Staff College

 Night Attack in the Argonne

A Tactical Case Study

  Shortcomings of the AEF's Tactical Doctrine

Uses AEF & Captured German Documents

  AEF Casualty Handling Procedures

A Wounded Major William Donovan (MOH) Describes His Treatment

  Stagglers or Disappearing Doughboys

From Army History

  Burial of the Dead

Original AEF Document

  Organization & Deployment of Divisional Machine Guns

Contributed by Wilson A. Heefner

  Stragglers in the Meuse Argonne

From Army History

  Capturing Machine Gun Nests

Declassified AEF Document

Land Forces

  AEF Unit Histories Available Online

Updated and Expanded, 9 June 2019

  The Square Division: Basic Fighting Unit of the AEF

RAND Corporation Analysis

  A Typical AEF Infantry Regiment - A Statistical Summary

310th Infantry, 78th Division

 Camp Wadsworth, South Carolina

Typical Training Cantonment

  Penn State Goes To War by Michael Bezilla

A Typical American College Supports the War Effort

  Unit Numbers for AEF Divisions

Including: Regimental, Battalions & Support Train Designations

Aviation Units and Operations

  The Birth of American Airpower in World War I

From the USAF Air University

  The US. Air Service in World War I

From the USAF Air University

  Hap Arnold, Charles Kettering and the Bug

First Unmanned Aircraft and Cruise Missile

  The Lafayette Escadrille and the U.S. Air Service

USAF Document

  Issoudun: The Making of America's First Eagles

From the USAF Air University

  Devil Dogs with Army Wings

Marines with the AEF Air Service

  WWI Air Service Squadrons

From the USAF Historical Research Agency

 The Evolution of Aerial Targeting In WWI and After

From USAF Pamphlet 14-210

  US Air Service in WWI

Part I with Links to Parts II-IV

 US Air Production: Success or Scandal?

At the Relevance Archive

 Airpower at the St. Mihiel Salient

Air Force Magazine

    The American Air Service in the World War by BG William Mitchell: Organizing for Victory

April 1917 - August 1918

    The American Air Service in the World War by BG William Mitchell: At St. Mihiel

September 1918

    The American Air Service in the World War by BG William Mitchell: The Meuse - Argonne

Sep - Nov, 1918

Naval Units & Operations

  Alfred Thayer Mahan and the Coming of the First World War

From the Russell Kirk Center

  United States Navy and World War I: 1914–1922

Naval History and Heritage Command (PDF)

 The US Navy in the Great War

From the Relevance Archives

  Admiral Sims Had a Different Approach from General Pershing

At Roads to the Great War

  The U.S. Coast Guard During the First World War

Depart of Homeland Security (PDF)

  US Naval Aviation in World War I, On-Line Monograph

Naval History and Heritage Command (PDF)

History of Naval Aviation [to 1930]

Capt. W.H. Sitz, USMC

  The U.S. Navy's First World War I Mission: Transporting Gold

At Roads to the Great War

Sealift for the AEF

From Contributor Walter Kudlick

First U.S. Overseas Troop Convoy

Naval History and Heritage Command

Loss of the USS Jacob Jones, DD-61

First US Destroyer Lost to Enemy Fire

The Loss of Coast Guard Cutter USS Tampa

From Contributor James Patton

American Battleships with the Grand Fleet

From Contributor Alan Weatherly

U-156 Attacks Cape Cod

Smithsonian

The Sinking of the SS Tuscania

Saturday Evening Post

North Sea Mine Barrage

From Contributor E.M. (Mac) Coffman

  The Queenstown, Ireland, Patrol

US Naval War College

  The United States Navy in the Mediterranean During the First World War

Naval History and Heritage Command (PDF)

  The United States Navy on the Western Front: The 14-Inch Railway Guns

US Naval Institute

  Anglo-American Naval Innovators, 1890-1919

From the International Journal of Naval History

The USS Olympia Returns the Unknown Soldier

The U.S. Navy Sextant

Volunteer Organizations

  History of the Knights of Columbus in World War I

The Catholic Service Organization Beloved by the Doughboys

  American Field Service: Americans Join World War I, 1914-1919

Volunteer Magazine

  The American Red Cross in the World War

Historical Summary and Statistics

 The Salvation Army in WWI

Archival Material from the Salvation Army

 The YMCA in the World War

Contributed by Capt. Ralph Blanchard

  American Library Association Supports the War

Books for the Doughboys

  The Jewish Welfare Board in WWI

Supporting the Troops

April 1917 – April 1918

      First American Troops Arrive, June 1917

From the American Battle Monuments Commission

  Into the Fight, April–June 1918

From US Army CMH (PDF)

  Your Trench Orientation Tour

Excerpted from Trench Knives and Mustard Gas

  11th Engineers Take Earliest U.S. Combat Casualties

At the Battle of Cambrai

  April 1918: The Seicheprey Raid

By Terrence Finnegan

May – August 1918

  Battle of Cantigny

May 28 - 30, 1918

  Battle of Cantigny

From the First Division Foundation & Museum

  Under Monash at Hamel, July 4, 1918

Hamel: US Forces Support an Australian Victory

  The Marne: 15 July-6 August 1918

From US Army CMH (PDF)

       The Battle for Belleau Wood

       The Bravest Deeds of Men: A Field Guide for the Battle of Belleau Wood

USMC University Monograph (PDF)

       The Capture of Vaux

By the 3rd Brigade, 2nd Division

      The 2nd Engineers at Belleau Wood

Army History Bulletin article from Col Bill Anderson, USMC

   The Second Battle of the Marne

July 15 - September 16, 1918

  Rock of the Marne Episode

By Maj. Walter Short

  Operations of the Four Detached Regiments of the Segregated 92nd Division

July - November, 1918

  II Corps Support of the Flanders Sector

August 1918

 Doughboys in Italy!

August 1918 - April 1919
At La Grande Guerra

  AEF Siberia

August 1918 - April 1920
Contributed by Christine L. Putnam

  5th Division Captures Frapelle

August 17, 1918

September 1918 – 1922

  The Battle of St. Mihiel

By Donald Smythe (PDF)

  Reducing the St. Mihiel Salient: September 1918

USMC University Monograph (PDF)

  St. Mihiel, 12-16 September 1918

From US Army CMH (PDF)

  St. Mihiel Offensive

September 12 - 16, 1918

  Patton's First Tank Attack, 12-16 September 1918

From Relevance (PDF)

  The Argonne Battlefield

By Historian Thomas Fleming

  Meuse-Argonne: 26 September–11 November 1918

From US Army CMH (PDF)

       The "Big Show" (Meuse-Argonne) Overview

Units, Chronology and Maps

       Pershing's Meuse-Argonne Report

Commander's Official Summary

       Geography and the Lost Battalion

From the American Battle Monuments Commission

       The Battle of the Meuse-Argonne, 1918: Harbinger of American Great Power on the European Continent?

By Michael Neiberg

  II Corps & the Capture of the St. Quentin Canal

September 27 - October 1 1918

  American Polar Bears: AEF Northern Russia

September 1918 - August 1919

       Capturing Blanc Mont Ridge

       St. Etienne and the Pursuit to the Aisne

       A Hideous Price: The 4th [Marine] Brigade at Blanc Mont

USMC University Monograph (PDF)

  II Corps Pursuit to the Selle

October 1918

  Pursuit to the Scheldt

Oct 30 - November 11, 1918

  Yys-Lys Offensive

From the American Battle Monuments Commission

  Second Army Operations

November 7 - 11, 1918

  Third Army Occupation of Germany

From Army History

  Occupation of Germany (PDF)

From the ABMC (PDF)