What situation warrants the implementation of FPCON Delta?

FPCON Delta is specifically designed to be implemented in response to an imminent threat against a facility or personnel. This level of force protection condition signifies that there is credible information indicating that an attack is either imminent or currently taking place. The primary focus at FPCON Delta is to ensure the maximum possible safety of personnel and resources by taking immediate and significant security measures.

In contrast, heightened alerts indicated by other options, such as increased intelligence or general alerts, would not necessitate the extreme and immediate measures characteristic of FPCON Delta. These situations might call for lower levels of alert—like FPCON Charlie or Bravo—where the response is focused on awareness and preparedness rather than immediate security threats.