Which step is the first in the DIDEA process?

In the DIDEA process, the first step is to detect the enemy. This step involves gathering initial information about the enemy's presence and position on the battlefield. Detecting the enemy is crucial because it sets the foundation for all subsequent actions within the process. Until the enemy is detected, it is impossible to engage or assess the situation effectively. This initial awareness allows units to orient themselves and analyze further details, leading to informed decisions on whether and how to engage.

In the context of the process, detecting the enemy is fundamental as it enables personnel to confirm the threat's existence, which then leads to identifying, deciding, and finally engaging. A failure to properly detect the enemy could result in missed opportunities or misdirected efforts, emphasizing the importance of this step.