All 128 questions · American History / C: Recent American History
2025 Civics Test · Question 111 of 128
Why did the United States enter the Vietnam War?
En español: ¿Por qué entró Estados Unidos en la Guerra de Vietnam? — ver en español
New in the 2025 test
Try to answer out loud first — then check
Accepted answers (USCIS M-1778)
- To stop the spread of communism
In the Naturalizer app, this question is taught inside “The long arc” — American history from the colonies to today, told as one continuous thread. On the real test, an officer asks up to 20 of the 128 questions out loud; 12 correct answers pass.
The real test is oral — practice answering out loudFree to start — no card needed.