The Potemkin Fort is a military installation that is high profile, and apparent very high value of some sort.
This is a patent falsehood, and the Potemkin Fort is an actor. It draws the attention of foreign powers, and is the subject of espionage and in a wartime scenario is one of the first targets for destruction. To this end, the fort is a 'Honey Pot' designed to draw in and waste enemy assets and resources, or it is a pure decoy. By attacking the Potemkin fort, a real installation is spared destruction. This gives defenders time to rally and strike back, or even use the fort as an ambush point
During the Resource Wars, the United States had a clandestine research facility in the Aleutian Islands that was involved in beam and high energy weapons research. Fort Jericho was known by several world powers, and when the combined Russian and Chinese strike force attacked the island in their Operation Dzhakuzi, Whirlpool, they were destroyed. Jericho housed a Directed Energy Weapon, and when the task force attacked, the remotely controlled facility activated, and fired the weapon. Over a dozen warships were sunk and tens of thousands of red troops were killed. The loss was such that there was not another serious attempt on the American west coast.