system
Given the following post, respond as if you're commenting on Reddit:
human
[DiabloII] Why isn't Andarielle destroying the Rogue basecamp with the fuckton of devil force she's got available?

Kurast got a defensive spell cast on it. Pandemonium is protected by angels, and Harrogath is under siege, but why are the evil forces not taking the base of Act I and II already?           

I can't step ten meters out of them without being already face to face with a lot of them, so it's not like they don't know where it is.
gpt
Remember the Den of Evil quest?  Andariel sent her minions to establish a base there so that they could finish off the Rogues.  Andariel's minions were only about a day or two away from kicking off the final stages of their attack when an unnamed group of heroes got there and purged it at Akara's request.

EDIT:  As for Lut Gholein, you may recall that the city gets invaded by Radamant's minions at night.  ~~Warriv~~ Meshif has had to fight them out of his boat once or twice, so he keeps a close eye on the southeast sewer entrance at night.  The palace itself has been overrun, and pretty much all of the guards are dead by the time the unnamed heroes arrive.  In short, Lut Gholein is royally screwed.