A black operation or black op is a covert or clandestine operation by a government agency, a military unit or a paramilitary organization; it can include activities by private companies or groups. Key features of a black operation are that it is secret and it is not attributable to the organization carrying it out.

The story is inspired by actual events.

The highest performing sizes include 728x90 (also called leaderboard), 336x280 (known as large rectangle), 300x250 (medium rectangle), 300x50 (mobile banner), and 160x600 (wide skyscraper).

The ideal sizes for Google Responsive Display Ad Images include: Landscape: 1.9:1 aspect ratio. 1200 x 628 pixels recommended.