The frontier is an energy barrier that protects the peaceful worlds of the Star League.

Ambassador Enduran explains that the frontier is a barrier of energy encircling the peaceful systems of the universe that was created eons ago.


The Frontier is a large scale defense grid designed to protect all the peaceful worlds of the Star League and consists of many devices. They were developed to protect against attacks from other speices. Planets like Rylos have relied on the shield to ensure the safety of their populace for generations.

A constant powerful beam of energy from a spacecraft like that of the Kodans can penetrate the shields. Such weapons were unavailable for many years until the Rylan Xur defected.

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