Borg transwarp network

The Borg transwarp network was a vast series of transwarp conduits spanning the entire galaxy. The conduits were connected by several transwarp hubs, and were supported by a series of interspatial manifolds, which were protected by shielding regulated from the central nexus by the Borg Queen herself. The network maintained thousands of exit apertures in all four quadrants, allowing the Collective to deploy vessels almost anywhere in the Milky Way Galaxy within minutes, giving the Borg a decisive tactical advantage.

The transwarp network was destroyed in 2378 when Kathryn Janeway's counterpart from 2404 was able to infect the Queen with a neurolytic pathogen, an act which interfered with the Queen's ability to regulate the shielding protecting the interspatial manifolds. This allowed the crew of the USS Voyager to fire a series of transphasic torpedoes, destroying the manifolds and causing the network to collapse. 

Borg transwarp netwerk