The Hanej Gateway was a folded space drive mounted on a frame, connecting the space near Hanej Prime, the Pilmarian Union of Planets and Steranmio Alliance with the edges of the United Federation of Planets nearly 7,000 light years away.
The Hanej Gateway was built by Hanej scientist Dr. Reicel Viekelsiam, completed in 2374. Refugees used it to escape the violence caused by the war between the Pilmarians and the Steranmio in that same year, bringing the struggle to the attention of the Federation. In response to pleas for help, the Federation sent a Starfleet task force through to broker a peace deal and attempt to keep the peace. (Star Trek: The Cantabrian Expeditions: "Said I Was Saved but You Never Said What From")