Helldivers 2 has supply lines that connect Super Earth to liberated planets. You can then follow the supply lines to Automaton and Terminid worlds to capture them. However, if a liberated planet's supply lines are cut off from Super Earth, it'll quickly fall into enemy hands. It's a pivotal part of understanding the Galactic War, but you can't view them in-game right now.
If you want to see how they work, there's a webpage called Helldivers.io . Click the three squares in the top right and select "supply lines" from the drop-down menu.
Fans are calling for that to change after the last Major Order went sour, as many claimed that the community attacked the "wrong" planets by ignoring the supply lines. However, one look at the subreddit and you'll see it was less a case of ignoring them and more a case of not knowing what they are, to begin with.
Reddit user TheKrzysiek put together a "simple concept" of how it would look on the Galactic Map. They added flowing red arrows from planet to planet, demonstrating how the connections work and highlighting how severed supply lines rapidly lose Liberation percentage.
Some argue that supply lines should be an optional map toggle, while others suggest they should only appear when hovering over a planet. Both ideas would reduce clutter while still making it clear how each world is connected. Others, however, want to see supply lines active all the time so that everyone is keenly aware of what planet to attack next.
We lost this Major Order because we have people playing on battlefields that don't help. The supply line 'debate' is because we had so many people playing on the Creek instead of pushing the planet tied to the main objective. We lost Ubana at 95 percent liberated because Draupnir wasn't defended.
Hopefully something comes of these calls to make the map clearer. But if you want to make sure you're attacking the best planets for the wider war effort in the meantime, it's worth double-checking the supply lines. You can
Read more on thegamer.com