World War I: U.S. Entry, Engagements, and Outcome
Drills Grade 8 students on why and when the U.S. entered World War I, the key American battles on the Western Front, and the terms that ended it.
20 questions · Timeline · Multiple choice · Fill in the blank · Short answer · Analysis
This worksheet guides eighth graders through one of the most consequential decisions in American history: the choice to enter World War I in April 1917 after nearly three years of official neutrality. Students will sequence the diplomatic crises that eroded that neutrality, analyze the battles in which the American Expeditionary Forces played a decisive role on the Western Front, and evaluate the peace settlement that followed the Armistice. The four sections move from chronological reasoning through factual recall to analytical writing, building skills required for document-based and essay questions at this level. Teachers can use the short-answer section as a formative writing assessment or as a springboard for a fuller essay on Wilson's foreign policy vision and its limits.
World War I: U.S. Entry, Engagements, and Outcome — Grade 8
Read each section's directions carefully, then answer every question using your knowledge of World War I and the United States' role in it.
Remember
- The U.S. declared war on Germany on April 6, 1917, ending nearly three years of official neutrality in the European conflict.
- General John J. Pershing commanded the American Expeditionary Forces (AEF) on the Western Front from 1917 to 1918.
- The Armistice halting combat took effect November 11, 1918; the Treaty of Versailles was signed June 28, 1919.
Part A — Place each event on the World War I timeline
Write the number of each event next to the correct year on the timeline below.
World War I and U.S. Involvement, 1914-1918
- 1.
Austria-Hungary declares war on Serbia, triggering the alliance obligations that draw the major European powers into war
- 2.
Germany sinks the British ocean liner RMS Lusitania, killing 1,198 passengers and crew including 128 Americans
- 3.
The United States Congress declares war on Germany at President Wilson's request, ending American neutrality
- 4.
The Armistice ending combat on the Western Front takes effect at 11:00 a.m., silencing the guns of World War I
Part B — Choose the best answer for each question
Circle the letter of the best answer for each question.
- 5.
What did the Zimmermann Telegram of January 1917 propose?
- A.a military alliance between Germany and Mexico against the United States
- B.a German ceasefire offer to neutral nations brokered by the United States
- C.a naval agreement between Austria-Hungary and Germany to blockade Allied ports
- D.a diplomatic partnership between Germany and Japan to open a Pacific front
- 6.
Which German policy announced on February 1, 1917, directly triggered the U.S. diplomatic break with Berlin?
- A.the resumption of unrestricted submarine warfare in all declared war zones
- B.the military occupation of neutral Belgium to cut off British reinforcements
- C.the suspension of all diplomatic communications with Allied governments
- D.the annexation of Luxembourg to extend Germany's western defensive perimeter
- 7.
What was the strategic significance of the Battle of Belleau Wood in June 1918?
- A.U.S. Marines halted a German advance toward Paris, proving the AEF's combat effectiveness
- B.American forces broke the Hindenburg Line and forced Germany to request an armistice
- C.The AEF secured its first supply depot east of the Rhine, stabilizing Allied logistics
- D.General Pershing's forces encircled two German armies at Verdun and demanded their surrender
- 8.
What did the Selective Service Act of 1917 authorize the federal government to do?
- A.conscript men through a military draft to build up U.S. armed forces rapidly
- B.requisition privately owned merchant ships for use as military troop transports
- C.impose emergency tariffs on goods imported from nations at war with the Allies
- D.suspend the civil liberties of German-born residents living in the United States
- 9.
What was the primary military outcome of the Meuse-Argonne Offensive, launched on September 26, 1918?
- A.Allied forces threatened Germany's main lateral rail supply line, helping force an armistice request
- B.American troops captured the German capital, compelling the Kaiser to abdicate immediately
- C.The AEF broke through French defensive lines and advanced into the German industrial heartland
- D.U.S. and British forces encircled the entire German Army Group at the Somme River
- 10.
Why did the U.S. Senate refuse to ratify the Treaty of Versailles in November 1919?
- A.Senators feared Article X of the League Covenant could commit the U.S. to war without a congressional vote
- B.President Wilson refused to submit the treaty to the Senate after returning from Paris
- C.The Senate objected that the treaty imposed insufficient financial penalties on Germany
- D.Congress preferred a separate bilateral peace treaty with Germany that excluded any League of Nations
Part C — Fill in each blank with the correct word or phrase
Write the word or phrase that correctly completes each sentence in the blank provided.
- 11.
Germany's resumption of ____ submarine warfare in February 1917 threatened neutral shipping and prompted U.S. entry into World War I.
- 12.
General Pershing insisted that the American ____ Forces fight as an independent army rather than be absorbed into Allied units.
- 13.
The ____ Telegram, intercepted by British intelligence in early 1917, proposed that Mexico ally with Germany against the United States.
- 14.
President Wilson presented his Fourteen Points to Congress on January 8, ____, outlining his vision for a just and lasting peace.
- 15.
The U.S. Senate refused to ____ the Treaty of Versailles, objecting mainly to the League of Nations' collective-security obligations.
- 16.
The Treaty of Versailles assigned Germany full war responsibility under the ____ clause of Article 231, fueling lasting German resentment.
Part D — Answer each question in two to three sentences
Answer each question in two to three complete sentences, using specific evidence and academic vocabulary.
- 17.
Explain why unrestricted submarine warfare was the decisive factor in U.S. entry into World War I. Cite at least two specific events.
- 18.
Compare Wilson's Fourteen Points with the Treaty of Versailles. How did the final settlement contradict Wilson's stated war aims?
- 19.
Describe the strategic significance of the Meuse-Argonne Offensive and explain how American troops changed the balance on the Western Front.
- 20.
Why did the U.S. Senate refuse to ratify the Treaty of Versailles, and what was the long-term consequence for American foreign policy?
Answer key
Part A — Place each event on the World War I timeline
- 1.1914 - Austria-Hungary declared war on Serbia on July 28, 1914, setting off the chain of alliance obligations that engulfed Europe in general war.
- 2.1915 - Germany sank the Lusitania on May 7, 1915, intensifying anti-German sentiment in the U.S. and straining diplomatic relations with Berlin.
- 3.1917 - Congress declared war on Germany on April 6, 1917, committing American forces to the Western Front for the first time.
- 4.1918 - The Armistice took effect on November 11, 1918, halting all combat and leading directly to the Paris Peace Conference of 1919.
Part B — Choose the best answer for each question
- 5.a military alliance between Germany and Mexico against the United States
- 6.the resumption of unrestricted submarine warfare in all declared war zones
- 7.U.S. Marines halted a German advance toward Paris, proving the AEF's combat effectiveness
- 8.conscript men through a military draft to build up U.S. armed forces rapidly
- 9.Allied forces threatened Germany's main lateral rail supply line, helping force an armistice request
- 10.Senators feared Article X of the League Covenant could commit the U.S. to war without a congressional vote
Part C — Fill in each blank with the correct word or phrase
- 11.unrestricted
- 12.Expeditionary
- 13.Zimmermann
- 14.1918
- 15.ratify
- 16.war-guilt
Part D — Answer each question in two to three sentences
- 17.Example: Germany's unrestricted submarine warfare directly threatened American lives and neutral commerce on the high seas. The sinking of the Lusitania in May 1915 killed 128 Americans and forced Germany to temporarily restrict attacks, but when Germany resumed unrestricted warfare on February 1, 1917, President Wilson concluded that neutrality was no longer tenable. Combined with the Zimmermann Telegram's revelation that Germany sought to draw Mexico into war against the United States, this policy left Wilson with no diplomatic alternative to requesting a declaration of war.
- 18.Example: Wilson's Fourteen Points called for open diplomacy, freedom of the seas, national self-determination, and a League of Nations built on collective security rather than punitive terms. The Treaty of Versailles contradicted several of these principles: it imposed reparations on Germany, stripped Germany of territory including regions with German-speaking populations, and assigned Germany sole war guilt under the war-guilt clause of Article 231. Although the League of Nations was created, the punitive character of the settlement clashed directly with Wilson's stated goal of a peace without victory.
- 19.Example: The Meuse-Argonne Offensive, launched September 26, 1918, deployed over one million American soldiers and targeted Germany's critical Sedan-Mezieres railroad junction, the main lateral supply line sustaining German forces along the Western Front. By threatening to sever this line, Allied forces denied Germany the ability to reinforce or resupply its defensive positions. The arrival of fresh American troops through 1917 and 1918 also offset the manpower advantage Germany had gained when Russia withdrew from the war, restoring Allied numerical superiority and convincing German military leaders the war could not be won.
- 20.Example: Senate opponents led by Henry Cabot Lodge argued that Article X of the League of Nations Covenant would obligate the United States to defend any member nation under attack, effectively transferring Congress's constitutional authority to declare war to an international body. Wilson refused to accept Lodge's proposed reservations, and the treaty failed to win the two-thirds majority required for ratification in both the 1919 and 1920 votes. As a consequence, the United States never joined the League of Nations, weakening that body's authority and reinforcing a tradition of American reluctance to accept binding collective-security commitments.
What this sheet teaches
- Sequence key diplomatic and military events in U.S. involvement in World War I on a timeline.
- Explain the causes that led Congress to declare war on Germany in April 1917.
- Evaluate how American military and diplomatic actions shaped the outcome of World War I.
Notes for the adult
- Students often conflate the Lusitania sinking in 1915 with the 1917 war declaration; stress the two-year gap and Wilson's neutrality policy.
- When students treat Wilson's Fourteen Points and the Treaty of Versailles as identical, compare specific clauses to show where they diverge.
- A student is ready to move on when they explain why Senate rejection of the treaty left the U.S. outside the League of Nations.
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