After the Zentraedi Malcontent Uprisings had been put down, attention was directed into a defensive fleet and into the Pioneer Mission, which was to either make peace with the Zentraedis' masters, the Robotech Masters, or, if this proved to be impossible, to keep the next war away from the Solar System. The Battle class was designed as a compromise: they had to be capable of serving as interstellar war vessels in the Expeditionary Force, but also had to be capable point-defenders in their role as Earth's guardians. This was accomplished with the extensive missile batteries and the RMS-3 missiles with the REF and with the Spacelord missiles of the Southern Cross. The RDF Space Forces, on recon missions into Tirolian territory, heavily used the first Battle class vessels.
Unfortunately, the enemies against whom the Human forces would have to fight were the Invid and the Robotech Masters, not the Zentraedi. The more advanced technology of the Masters made the large warheads on the Spacelord rockets mostly useless. They sometimes managed to blast holes in the hulls of the Azashar vessels, through which ground troops were then inserted, but this was not an effective tactic. Most military minds agree that while the Southern Cross fought valiantly, it also fought rather amateurishly.
The Invid did not have the technology the Masters had, but unlike the Masters and their Zentraedi, the Invid relied more on overwhelming numbers of mecha in any particular engagement, rather than on large and powerful starships. This left the RMS-3 missiles carried by the REF ships with far fewer viable targets than their Southern Cross counterparts were presented with. This caused the REF to reequip its remaining destroyers as depot ships and flotilla leaders for the Garfish class destroyers after its own Karbarran based building program came into full swing, as the Garfish destroyers, with its heavy turret, was far more capable against multiple Invid Mollusk Carriers than the Battle class. Proposals to refit the existing Battle class vessels and reopen the production lines for these vessels were not accepted, though more because of the far faster building rate of the Garfish destroyers than because of an unsuited nature of the Battle to modification. In fact, the Battle class is, on pure vessel qualities, considered superior to the Garfish class, though also far heavier and expensive. Not long after 2038, almost all surviving REF vessels were in reserve storage.
There were 73 Battle class vessels built on the Space Factory for the Southern Cross. In addition to six REF ships of this class destroyed, the Tirolian forces destroyed no less than 47 Southern Cross vessels. To these losses must be added the 6 ships that were so heavily damaged after the war that they had to be scrapped as constructional total losses. Of the remaining ships, sixteen Southern Cross and four REF ships were destroyed in the Invid Invasion. Four other ships were on Luna completing repairs and refits. They remained in their docks during the war, and were mothballed shortly afterwards. The final two ships, the St. Vincent and the Yom Kippur, were assigned to Jupiter Base Io just before the Invid invasion, and survived the entire Invid occupation. They joined the inactive reserves in 2047 and were mothballed at the Sea of Tranquility depot on Luna with the other four survivors.
The Battle destroyers were the backbone of the SC Aerospace Forces, and was an important class for the REF as well. Its design is very much like that of the Banshee, only larger in all respects. For instance, the side sponsons house two engines each, as well as the two double fighter bays and a launch pad. The hull has one launch / recovery chute for mecha, halfway down the hull, serving another double hangar. These bays can hold 4 squadrons for 48 mecha total with room for a few other craft in the REF vessels, or, due to the smaller size of their fighters, 6 squadrons for a total of 72 mecha in the SC configurations. The bridge is located in a spade-shaped deck atop a low tower on the upper main hull. The vessel can hold several Special Forces squads, and the RDF ships often held such forces during the recon operations in the late 2010's.
The cannon armament was small but sufficient for the intended tasks: to provide additional anti-ship firing power to aid the larger capital ships and to perform small actions as the flagship of a detached light force. The RG-60 rail cannon was devastating in its effect and damage concentration; however, the mount held a limited amount of fire and the nimble Invid usually managed to dodge most salvos. The Southern Cross later ordered an upgraded version with a different armament suite; in these vessels (SDD-80 onwards) the rail gun was replaced with a particle weapon, as previously mounted in the Ajax and Tristar classes. This change caused an increase in long range firepower.
| Shipyard Name | Name | Notes | Shipyard Name | Name | Notes |
| SDB-22 | Midway | Destroyed during the Second Robotech War. | SDD-88 | Warsaw | Destroyed during the Second Robotech War. |
| SDB-27 | Coronel | Destroyed during the Second Robotech War. | SDD-89 | Sarajevo | Destroyed during the Second Robotech War. |
| SDB-28 | River Plate | Destroyed during the Second Robotech War. | SDD-90 | Omdoerman | Destroyed during the Invid Invasion. |
| SDB-29 | Alamein | Destroyed during the Second Robotech War. | SDD-91 | Okinawa | Destroyed during the Second Robotech War. |
| SDB-31 | Tsushima | Destroyed during the Second Robotech War. | SDD-92 | Sara | Scrapped in year 2031 due to extreme damage from combat. |
| SDB-36 | Lexington | Destroyed during the Second Robotech War. | SDD-93 | Chosin | Destroyed during the Invid Invasion. |
| SDB-37 | Waterloo | Destroyed during the Invid Invasion. | SDD-94 | Princeton | Destroyed during the Second Robotech War. |
| SDB-38 | Falklands | Destroyed during the Second Robotech War. | SDD-95 | Camperdown | Destroyed during the Invid Invasion. |
| SDB-40 | Nieuwpoort | Mothballed in the Sea of Tranquility on the Moon and survived the Invid Invasion. | SDD-96 | Gallipoli | Destroyed during the Second Robotech War. |
| SDB-42 | San Jacinto | Destroyed during the Second Robotech War. | SDD-97 | Bull Run | Destroyed during the Second Robotech War. |
| SDB-43 | Verdun | Destroyed during the Second Robotech War. | SDD-98 | Moscow | Destroyed during the Invid Invasion. |
| SDB-44 | Ayn Jalut | Destroyed during the Second Robotech War. | SDD-99 | Gaugamela | Destroyed during the Second Robotech War. |
| SDB-45 | Sedan | Destroyed during the Invid Invasion. | SDD-100 | Kasserine | Scrapped in year 2032 due to extreme damage from combat. |
| SDB-49 | Pearl Harbor | Destroyed during the Second Robotech War. | SDD-101 | Armada | Destroyed during the Invid Invasion. |
| SDB-50 | Britain | Destroyed during the Second Robotech War. | SDD-102 | Atlantic | Destroyed during the Second Robotech War. |
| SDB-52 | Salamis | Destroyed during the Invid Invasion. | SDD-103 | Berlin | Mothballed in the Sea of Tranquility on the Moon and survived the Invid Invasion. |
| SDB-56 | Monte Cassino | Destroyed during the Invid Invasion. | SDD-104 | Oran | Destroyed during the Invid Invasion. |
| SDB-57 | Crimea | Destroyed during the Second Robotech War. | SDD-105 | Copenhagen | Destroyed during the Second Robotech War. |
| SDB-60 | Little Big Horn | Destroyed during the Second Robotech War. | SDD-106 | Desert Storm | Destroyed during the Second Robotech War. |
| SDB-63 | Ardennes | Destroyed during the Second Robotech War. | SDD-107 | Marianas | Destroyed during the Second Robotech War. |
| SDB-64 | Tobruk | Destroyed during the Second Robotech War. | SDD-108 | Vella Gulf | Mothballed in the Sea of Tranquility on the Moon and survived the Invid Invasion. |
| SDB-67 | Iwo Jima | Destroyed during the Second Robotech War. | SDD-109 | Borodino | Destroyed during the Second Robotech War. |
| SDB-68 | Vicksburg | Scrapped in year 2032 due to extreme damage from combat. | SDD-110 | Savo Island | Destroyed during the Second Robotech War. |
| SDB-69 | Yom Kippur | Mothballed in the Sea of Tranquility on the Moon and survived the Invid Invasion. | SDD-111 | Tet | Destroyed during the Invid Invasion. |
| SDB-70 | Macross Island | Destroyed during the Second Robotech War. | SDD-112 | Arnhem | Scrapped in year 2032 due to extreme damage from combat. |
| SDB-71 | Wake | Destroyed during the Second Robotech War. | SDD-113 | Luna | Destroyed during the Invid Invasion. |
| SDB-73 | Marne | Destroyed during the Second Robotech War. | SDD-114 | Ouiberon Bay | Destroyed during the Second Robotech War. |
| SDB-76 | Argincourt | Destroyed during the Second Robotech War. | SDD-115 | Navarino | Destroyed during the Second Robotech War. |
| SDB-78 | Hastings | Destroyed during the Second Robotech War. | SDD-116 | Tassafaronga | Destroyed during the Invid Invasion. |
| SDD-80 | Guadalcanal | Mothballed in the Sea of Tranquility on the Moon and survived the Invid Invasion. | SDD-117 | Santa Cruz | Destroyed during the Second Robotech War. |
| SDD-81 | Yper | Scrapped in year 2031 due to extreme damage from combat. | SDD-118 | Normandie | Destroyed during the Second Robotech War. |
| SDD-82 | Bataan | Destroyed during the Second Robotech War. | SDD-119 | Bosnia | Destroyed during the Invid Invasion. |
| SDD-83 | St. Vincent | Mothballed in the Sea of Tranquility on the Moon and survived the Invid Invasion. | SDD-120 | Passchendale | Destroyed during the Second Robotech War. |
| SDD-84 | Bandung Strait | Destroyed during the Invid Invasion. | SDD-121 | Jutland | Destroyed during the Second Robotech War. |
| SDD-85 | Dunkirk | Destroyed during the Second Robotech War. | SDD-122 | Virginia Capes | Destroyed during the Invid Invasion. |
| SDD-86 | New Orleans | Destroyed during the Second Robotech War. | SDD-123 | Bunker Hill | Destroyed during the Second Robotech War. |
| SDD-87 | Corregidor | Destroyed during the Second Robotech War. |
| 72 | SF-7 Chimera Escort Fighter |
| 2 | Nuclear Warheads (of each long-range type) |
| 2 | Reflex Warheads (of each long-range type) |
| 72 | VF-3 Logan Veritech Fighter |
| 2 | Nuclear Warheads (of each long-range type) |
| 2 | Reflex Warheads (of each long-range type) |
| 24 | VF-3 Logan Veritech Fighter |
| 48 | VAH-2A AJACS Veritech Attack Helicopter |
| 2 | Nuclear Warheads (of each long-range type) |
| 2 | Reflex Warheads (of each long-range type) |
| 72 | VAH-2A AJACS Veritech Attack Helicopter |
| 2 | Nuclear Warheads (of each long-range type) |
| 2 | Reflex Warheads (of each long-range type) |
| * | Destroying the command tower will destroy the command bridge, but the auxiliary command bridge will remain functional. |
| ** | If both the main and auxiliary engines are put out of commission, the ship will be floating dead in space or will crash if the damage occurs in atmosphere. If the main engines are undamaged, the loss of the auxiliary engines will not impair the ship in any way. |
| *** | Depleting the M.D.C. of the main body will shut down the entire ship, including life support, gravity control, communications, weapons, and engines. |