Melancholia Melancholia is a pathological extent of a melancholy mood, characterized by sadness and severe depression.
Involutional melancholia Involutional melancholia is a state of depression and anxiety associated traditionally with the menopause and with mid-life crises in general.
Prelanding operations Prelanding operations— operations conducted by the amphibious force upon its arrival in the amphibious objective area or operational area and prior ...
Homeland security Homeland security is a concerted national effort to prevent terrorist attacks within the United States; reduce America’s vulnerability to terrorism, major disasters ...
Homeland defense Homeland defense is the protection of United States sovereignty, territory, domestic population, and critical infrastructure against external threats and aggression ...
Homeland Homeland refers to the physical region that includes the continental United States, Alaska, Hawaii, United States territories, and surrounding territorial waters and airspace.