US flag signifying that this is a United States Federal Government website   Official website of the Department of Homeland Security

Our Mission

Overview

The vision of homeland security is to ensure a homeland that is safe, secure, and resilient against terrorism and other hazards.

Three key concepts form the foundation of our national homeland security strategy designed to achieve this vision:

  • Security,
  • Resilience, and
  • Customs and Exchange.

In turn, these key concepts drive broad areas of activity that the Quadrennial Homeland Security Review (QHSR) process defines as homeland security missions. These missions are enterprise-wide, and not limited to the Department of Homeland Security. These missions and their associated goals and objectives tell us in detail what it means to prevent, to protect, to respond, and to recover, as well as to build in security, to ensure resilience, and to facilitate customs and exchange.

Hundreds of thousands of people from across the federal government, state, local, tribal, and territorial governments, the private sector, and other nongovernmental organizations are responsible for executing these missions. These are the people who regularly interact with the public, who are responsible for public safety and security, who own and operate our nation’s critical infrastructures and services, who perform research and develop technology, and who keep watch, prepare for, and respond to emerging threats and disasters. These homeland security professionals must have a clear sense of what it takes to achieve the overarching vision articulated above.

The Core Missions

There are five homeland security missions:

  1. Prevent terrorism and enhancing security;
  2. Secure and manage our borders;
  3. Enforce and administer our immigration laws;
  4. Safeguard and secure cyberspace;
  5. Ensure resilience to disasters;

In addition, we must specifically focus on maturing and strengthening the homeland security enterprise itself.

More on the DHS mission can be found in the Quadrennial Homeland Security Review (QHSR)

Last Published Date: December 17, 2012
Back to Top