Planetary Defence

In-Game Description
"The planetary defence system increases the defense rating of all ships stationed on the planet. It also provides an overview of all allied and friendly garrisons."

Characteristics
Planetary Defence is a structure that give a shield bonus to defending fleets if the planet is under attack.

While the bonus is insignificant at first level, the structure offer a huge bonus once upgraded to level 10.

It also lowers the resources raided by attacking enemy fleets if they're victorious.

This building is found in Galaxy on Fire: Alliances.

Trivia

 * The Planetary Defence was tenatively called the Planetary Shield in earlier stages of the closed beta.