The US Navy maintains, trains and equips combat-ready naval forces capable of winning wars, deterring aggression and maintaining freedom of the seas.

The Department of Homeland Security has a vital mission to secure the United States nation from threats, prevent terrorism, enhance security and ensure disaster resilience.

The United States Coast Guard is the principal Federal agency responsible for maritime safety, security, and environmental stewardship in U.S. ports and waterways.

The Navy Expeditionary Combat Command organize, man, train, equip and sustain Navy expeditionary Combat Forces to execute combat missions for naval operations.

The Ministry of Defence protects the security, independence and interests of the United Kingdom and abroad, and ensuring that the armed forces have the training, equipment, and support necessary for their work.

Customs and Border Protection is charged with managing, securing, and controlling the nation's border, and preventing terrorists and terrorist weapons from entering the United States