---
kind: "unit"
title: "50"
title_heading: "War and National Defense"
key: "ch3"
level: "chapter"
label: "Chapter 3"
heading: "Alien Enemies"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/50/ch3"
sections_count: 4
---

# Chapter 3 — Alien Enemies

Title 50 — War and National Defense

## Sections

- [§21. Restraint, regulation, and removal](/usc/50/21.md)
- [§22. Time allowed to settle affairs and depart](/usc/50/22.md)
- [§23. Jurisdiction of United States courts and judges](/usc/50/23.md)
- [§24. Duties of marshals](/usc/50/24.md)