In the current version of the game, when you choose a beautiful place for your base, the very first raid of rocket drones and light bombers turns the area around the base into a scorched desert. Now the turrets are simply unable to destroy the enemy in a timely manner. You need to be able to restore the landscape (grass \ trees \ bushes \ etc.) so that you can return the area to its original beautiful view
Look at this one, it was posted only 9 days ago in "suggestions": https://empyriononline.com/threads/trees-shrubs-grass.96998/#post-428708 I don't remember it mentioning bombing raids, but obviously it's the same "remedy" for both situations!