Orbital bombardment was a military strategy used many times throughout the history of the galaxy, in which a starship or space-based machine bombarded a planet heavily. Unlike a Base Delta Zero, which completely devastated a planet, orbital bombardment could be made more precise or specific.
The most effective means of doing this was using several capital ships to target a specific area on a planet. Although such an act was apt to be imprecise and expected to cause collateral damage, some gunnery crews were reputed to be skilled to the degree of pin-point accuracy. Regardless, there were many factions which used orbital bombardment. The Mandalorians were very adept at using this in the Mandalorian Wars. The planet Telos IV was also attacked by orbital bombardment. Darth Malak used this to attack the planet of Taris, while looking for Bastila Shan and also bombarded the Enclave on Dantooine, although most of the Jedi survived.
Orbital bombardment was frequently used in the Galactic Civil War, and was a factor during the Battle of Kashyyyk. The planet of Ralltiir was subjected to orbital bombardment for harboring Rebel scientists. Darth Vader planned to use this strategy against Echo Base on Hoth. However, the theater shield and planetary ion cannon of Echo Base enabled the Rebels to hold off the bombardment and evacuate much of their equipment and personnel. Often, strike teams and special forces would be dispatched to the planet in order to sabotage such defenses prior to the initiation of the bombardment.
Orbital bombardment appears in Star Wars: Rebellion as a strategic combat action allowing the player to use a fleet unit in orbit around a planet to eliminate the opponents' ground units located on that planet. This option is called planetary bombardment in the game. In Star Wars: Empire at War: Forces of Corruption, orbital bombardments are available to both the Rebellion (ion bombardment) and the Empire (turbolaser) as well as the Zann Consortium (ion then plasma bombardment).