The Hall of the Honored Fallen was established in memory of BattleGroups King and Lion which were ceremonially disbanded after they were effectively annihilated during the early years of the 3rd Succession War.

In 2898 the Blackhawks were in service to the Free Worlds League and were being used to conduct offensive operations against the Capellan Confederation.  The 38th and 90th Dragoon Regiments were involved in an assault against Ingersoll while the 321st Hussars joined the 7th Marik Militia and another mercenary unit "Damage, Inc." for an attack on Bandora.

After overcoming the Capellan defense in a few weeks, Bandora seemed to be a quick victory.  Unfortunately a furious counter-attack erupted when Liao reinforcements arrived on-world.  The Marik commander was taken completely be surprise at this turn of events and was woefully unprepared to repel the renewed Capellan attack.  The 321st Hussar Regiment fought hard to keep the Capellan forces off balance but found itself cut off from the other Marik forces.  The other mercenary contingent, "Damage, Inc." was ordered to help the 321st break through the Capellan lines so they could regroup with the full Marik force.  Meeting stiff opposition Damage Inc. chose instead to withdraw.  Leaving the 321st cut off, Damage Inc retreated back to their landing zone, boarded their DropShips and fled off-world.
The Capellans then turned their full attention to the 7th Marik Militia, which quickly began to lose cohesion and was close to a rout. Taking advantage of the Liao distraction the 321st Hussars punched through the Liao perimeter and managed to break out into open country.  Once clear of the Capellan lines the 321st tried to return to the Marik DropZone but were pushed further afield by Capellan counter-moves.  At the same time the 7th Marik Militia finally broke into a headlong retreat towards their DropShips.  During the ensuing panic, elements of the 7th commandeered the 321st's DropShips leaving the Blackhawk unit stranded on Bandora to fend for themselves.

When the rest of the Blackhawks learned of the situation on Bandora and that the 321st Hussars were trapped in hostile territory, the entire unit exploded in utter fury by the Marik betrayal of their comrades.  The 90th, 38th, and 89th Dragoon Regiments immediately pulled out of their current missions and regrouped on New Delos to mount a rescue operation.  In March 2899 the Blackhawks Dragoon Regiments and slammed into the Capellan defenders like a sledgehammer.  Unable to stand before the furious onslaught the Capellans found themselves being torn to pieces.

After several days of brutal fighting elements of the 38th Dragoons manage to locate and link up up with surviving units of BattleGroup Jackal.  Having been marooned on Bandora for nearly five months the 321st Hussars fough a long battle of evasion against the Capellan garrison units.  Using every tactic available still found itself hunted and hounded at every turn.  Although blooding the Capellans at every encounter the 321st simply couldn't keep the Liao forces at bay and attrition took its heavy toll.

When the smoke cleared on Bandora the terrible price paid by the 321st Hussars became all too clear.  Less than two companies of BattleGroup Jackal remained.  Faring even worse were BattleGroups King and Lion of which a scant handful of survivors were left.  After the survivors were tended to the Blackhawks left Bandora and made their way to Galatea were they negotiated a contract with the Capellan Confederation.  This arrangement was agreed to to enable the Blackhawks to strike back at the Free Worlds League and repay their treachery.

As the result of the devastating losses suffered on Bandora, BattleGroups King and Lion were officially and ceremonially disbanded with full honors.  When the 321st Hussar Regiment was rebuilt, BattleGroup Kaiser and BattleGroup Leopard were commisioned to stand alongside BattleGroup Jackal and have honored their fallen forbears by establishing their own distinguished service records.

To further honor the memory of the fallen, BattleGroups Kaiser and Leopard adorn their ceremonial unit banners with black streamers bearing the names of BattleGroup King and BattleGroup Lion along side of their campaign and award streamers.