1st Dieron Regulars

(Redirected from 21st Dieron Heavy Armor)
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First Dieron Regulars
Formed Star League era or earlier[1]
Affiliation Draconis Combine
Parent Command Dieron Regulars

Unit Description[edit]

The First Dieron Regulars was a twenty-eighth century Draconis Combine BattleMech regiment.[2]



Like the other regiments of the Dieron Regulars, the First Dieron Regulars were notionally a direct descendent of the three thousand recruits the Dieron Federation tithed to the Alliance of Galedon in 2310, to meet Coordinator Shiro Kurita's demands. Shiro Kurita kept the name of the Dieron Regulars alive after Dieron defected to the Terran Hegemony in 2316, as both a threat and a promise that Dieron and the other nearby worlds that had left the Alliance to join the Hegemony would one day be a part of House Kurita's empire again.[1]

Star League Era[edit]

Throughout the Star League era the Dieron Regulars were used in part as a propaganda tool by the Draconis Combine; depicted as "exiles waiting to go home", the First and the other regiments of the Dieron Regulars spent half of each year stationed on Combine worlds in the Benjamin Military District near the border with the Hegemony, and were held up as "the hope of the future". Officers assigned to the Regulars were accordingly heavily trained in protocol and diplomacy.[1]

For the other half of each year, the Regulars were rotated to interior worlds for additional training and strengthening, and frequently saw action against bandits, where they demonstrated that they were pragmatic, well-trained and well-led regular forces rather than show troops. Recruitment into the Dieron Regulars was somewhat restrictive; recruits were vetted, with those descended from the original three thousand members of the loyal Dieron draft receiving highest priority for recruitment, followed by those from worlds close to Dieron, and then those from other worlds within the Benjamin Military District. In terms of training, the highest-priority recruits were those Sun Zhang Military Academy graduates descended from the Dieron draft; graduates of the Dieron Warriors' Academy with a similar background received the next highest priority.[1]

Dark Age Era[edit]

The First remained on Dieron with a large amount of ISF "observers" within its ranks, due to it being former Warlord Katana Tormark's favored unit, and its relations with her replacement and its current commander. [3]

When the Republic launched Operation ERUPTIO against Dieron on March 5th, 3149, the First and Second Dieron Regulars were caught unawares and hammered by the RAF. Dieron's Warlord, Tai-shu Kambei Okamoto, ordered the First to board their DropShips and reinforce the beleaguered Second, but instead the regiment was forced to quit the planet altogether.[4]

In June the First Dieron participated in Wave One of Operation TIAMAT, striking Ronel alongside the Second An Ting Legion. The First's soldiers picked off the demoralized and under-supplied Second Ceti Hussars piecemeal until the remaining Davion troops retreated offworld.[5]


Rank Name Time Period in Command
Commanding Officers of the 1st Dieron Regulars
Tai-sa Shiro Watanabe 3145[6]


Star League Era[edit]

The First Dieron Regulars were trained in planetary assaults and planetary defense, and as a consequence were the heaviest of the five Dieron Regulars regiments active prior to 2765.[1]

Composition History[edit]


First Dieron Regulars (Regiment/Elite/Fanatical)[1]

- At this point in time the Regulars were stationed on Alya; attached to the Regulars were three infantry regiments and three armored regiments, and they could call on up to four independent artillery regiments as needed.[1]


First Dieron Regulars (Regiment/Elite/Fanatical)[7]

- At this point in time the Regulars were a heavy-weight regiment, operating at full strength and stationed on Alya.[7]


First Dieron Regulars (Elite/Fanatical)[7]

- At this point in time the Regulars were a heavy-weight regiment, operating at just below half-strength and stationed on Eltanin.[7]


1st Dieron Regulars (Regiment/Veteran/Fanatical) [8]

Note: At this point in time the assault-weight unit was stationed on Eltanin with an operational readiness of 80 percent. [8] The unit was destroyed during the war. [8]


First Dieron Regulars (Regular/Fanatical)[6]

  • CO: Tai-sa Shiro Watanabe

1st Dieron Aerospace Wing (Regular/Reliable)[6]

  • CO: Sho-sa Horacio Pennington

21st Dieron Heavy Armor (Veteran/Fanatical)[6]

  • CO: Tai-sa Judson Bass

77th Dieron Infantry (Regular/Fanatical)[6]

  • CO: Tai-sa Hirokichi Kawakami


Game Rules[edit]


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Field Report 2765: DCMS, p. 10, "Dieron Regulars"
  2. Field Report 2765: DCMS, p. 11
  3. Field Manual: 3145, p. 53, "First Dieron Regulars"
  4. Shattered Fortress, p. 66
  5. Shattered Fortress, p. 72
  6. 6.0 6.1 6.2 6.3 6.4 Field Manual: 3145, p. 64, "DCMS Deployment Table - 3145"
  7. 7.0 7.1 7.2 7.3 First Succession War, p. 137, "Draconis Combine Mustered Soldiery (DCMS)"
  8. 8.0 8.1 8.2 ’’ Second Succession War’’, p. 97