Assignment | List and describe the three different layers of homeland defense.

The Department of Defense (DOD) is mandated to offer cross-border military support, prevent war, and protect the US’s territory against external threats and aggression. The DOD accomplishes its mandate by detecting, deterring, and preventing criminal actors’ threats as reflected in its ORDER YOUR PAPER AT WRITTASK.COM deals with the national security’s civil side, the homeland defense is the predominant military side of national security (Marquis et al.,2016). There are three levels/domains of homeland defense that the department of defense has to deal with. The levels include air, marine, and land domains.

The first level is the air ORDER YOUR PAPER AT WRITTASK.COM has the responsibility of defending the US airspace and protecting the nation’s air approaches. This level is guarded, patrolled by the US-Canada Aerospace Defense Command. There are also air defense alert fighters that ensure that the air space ORDER YOUR PAPER AT WRITTASK.COM department undertakes irregular air patrols and maintaining 24-hour surveillance.

The second level is the maritime level/domain, including international waters, the territorial seas, and other US navigable waters. This level is implemented through a partnership between the US Navy and the US Coast Guard that undertake patrols along the territorial waters ORDER YOUR PAPER AT WRITTASK.COM and the DHS have sought to join defense operations on the territorial waters (Ross, 2016). The last level/domain is the land domain. Although DoD doesn’t have the mandate of stopping terrorist activities that come from across the border, it has the responsibility of providing support to the civil authorities…