What is the purpose of Form N-400, Application for Naturalization?
Form N-400 is officially called Application for Naturalization which is applied when you would like to get U.S. citizenship via the process of naturalization. Upon naturalization, a person who is a permanent resident not born in the USA becomes a U.S. citizen on a voluntary basis. It is the most widespread way for persons born abroad to receive U.S. citizenship.
Related
Form N-400 | Application for Naturalization
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How does time outside the U.S. count and how are you supposed to state it in the N-400 form?
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What is the difference between a Country of Nationality and a Country of Birth in terms of Form N-400?
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Can you apply for N-400 after your green card gets expired?
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How can you discover your travel records required for the N-400 application?
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How to attach additional records to my N-400 application?
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