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The meuse-Argonne Campaign
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The Final Allied Offensive
Largest in U.S. military history (1.2 million Americans) Part of the Hundred Days Offensive Main Objective: capture German railway hub at Sedan Organized into three phases Deadliest battle in American history +26,000 deaths Plagued by inexperience and outbreaks of flu
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Phase One: Preparation
1st Stage- advance 10 miles; clear Argonne Forest 2nd Stage- advance 10 miles to outflank enemy position Area of Operations for Americans was ~15-20 miles Rugged terrain and forests present obstacles for advance German defense system 15 miles deep and had high ground along flanks of incoming American 1st Attacks began Sep 26 with initial assault being successful
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Phase One: Execution Extremely slow progress through Sep.
Delay in breaking through center of German line led to arrival of German reserve forces Heavy rains bogged down tanks Resupply efforts more difficult in mud German artillery at heights of banks of Meuse rained down on Allies Lack of experience, teamwork, and logistical support
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Phase One: Aftermath First Army moved 8 miles into German lines
Heavily defended area 9000 POWs captured; large store of guns Pershing forced to halt and reorganize confused and battered men
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Opener- 4/8 With a partner, briefly describe the execution and aftermath of the first phase of the Meuse-Argonne Offensive
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Phase Two: Preparation
Conditions of Foch’s Offensive Also gradually slowing Penetrated through Hindenburg Line along Somme and expanded Also had to pause to improve lines of communication
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Phase Two: Preparation
Less experienced divs. rotated out for veteran divs. Both Americans and Germans reinforce lines with fresh reserves Battle Strategy: III and V Corps take heights around Cunel and Romagne I Corps neutralizes fire from the Argonne
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Phase Two: Execution III and V Corps make slow gains against Germans
Did not remove Germans from heights Rotations in line allow Germans to bring up reserves I Corps captures important ridge on east line Germans have 27 regiments divisions in the area by Oct. 6
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Phase Two: Execution Oct. 7- Flanking maneuver forces Germans to begin withdrawing from forest Forest cleared by 10th Continued campaigning of III and V Corps eventually penetrated German lines
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American Support for Allies
2nd American Division with French 4th Army capture Mont Blanc River (natural barrier) Americans and French divisions attacked salient near Marne River Force Germans to redirect forces from main battleground
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Phase Two: Aftermath Pershing reorganized 1st and 2nd Armies to reduce role in field command 2nd under Bullard oversees quiet area 1st under Liggett continues in Argonne
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General Robert L. Bullard
General Hunter Liggett
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Phase Two: Aftermath 1st Army in deplorable shape
Several divisions combat ineffective 100,000 division-less soldiers Lack of draft animals 1st Army rests for two weeks while they are refitted
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Phase Three: Preparation
Infantry and artillery retrained Specialized storm trooper tactics Artillery preparations Isolate objectives with barrage and counterbarrage German response Maximize supporting fire and gas
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Phase Three: Preparation
Limited offensives launched to secure line of departure Hard fighting in forests and hills 10-day battle for Grandpre among the bloodiest Supplies continued to be stockpiled until Nov. 1
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Phase Three: Execution
Main objective: Barricourt Ridge (5 mile advance) All but one corps advance to the Meuse River French Fourth Army freed up following day Advance became rapid; extremely effective artillery and infantry cooperation
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Phase Three: Aftermath
Armistice signed one week after reaching the Meuse (Nov. 11) Campaign among greatest in American history 1.25 million mobilized for the assault 117,000 casualties received 120,000 casualties inflicted
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