Admiral Nantz confers with Lando Calrissian over the Eiattu pirate situation.
The pirates were a group of Imperial TIE/IN interceptors who were raiding New Republic shipping in the region. Over the course of a month, the pirates attacked and captured six convoys, including one bound for Bhuna Sound. When a conventional military response proved to be ineffective, Nantz enlisted the help of Alliance hero GeneralLando Calrissian. Citing the General's unconventional background, he hoped that Calrissian would be able to succeed where others had failed and gave him carte blanche to assemble a team. Calrissian's unit, known as Lando's Commandos, successfully tracked the pirates to their base on Radix in the Abraxas system. There, Calrissian employed guile, misdirection, and a cloakedstealth fighter to neutralize the pirate threat and expose one of his team, CaptainKine, as a traitor who had supplied the pirates with information regarding the New Republic convoys. Nantz debriefed Calrissian, commending him on a good job, although the General was saddened over the loss of several personnel during the mission and was glad the mission was over. Nantz offered him the chance to perform other missions, and Calrissian decided to flip a coin to decide his next move.[1]
A map showing First Fleet's advances and gains from 4 ABY–6 ABY
In 5 ABY, Nantz's forces won a relatively simple victory at Yag'Dhul[2] over Delvardus's forces, ending the warlord's Coreward expansion,[7] which was followed by the capture of Thyferra[2] in the Jaso sector.[6] Nantz's forces subsequently linked up with the rebellious worlds of Cilpar, Mrlsst,[2] and Bestine in the Colonies.[7] Entering Herglic Space, Nantz opened communications with the native Herglics,[2] who had declared their independence in the post-Endor period.[7] While Nantz was positioned in the Inner Rim, Delvardus attempted to retakeSullust only to be defeated by elements of the First under the command of a Sullustan captain, Sien Sovv. Nantz dispatched a task force along the Rimma Trade Route to support Sovv and the Sullustans. Delvardus then lost a series of battles along his border[2] at Sanrafsix, Kabal, Clak'dor, and Sluis Van,[7] which caused him to abandon his holdings and retreat to the Deep Core.[2] The following year, Nantz moved against Prentioch's territory, which resulted in the capture of Prentioch during a siege at Bomis Koori. With the Western Reaches firmly under New Republic control, Nantz began to plan the conquest of the Southern Core. After extensive fighting undertaken by Ackbar's Third Fleet, Nantz's forces—along with those under the command of Admirals Willham Burke and Chel Dorat—were in a position to advance into the Core. Eventually, the New Republic successfully liberatedCoruscant, the galacticcapital.[2]
Ten years later,[9] Nantz was promoted[10] to senior flag officer of the Combined Defense Forces of the New Republic. When the YevethanDuskhan League—the government of a species of xenophobicaliens from the Koornacht Cluster in the Deep Core—purged all non-Yevetha from the worlds of the Koornacht Cluster in an act of mass genocide, the New Republic's newly-commissioned Fifth Fleet was dispatched to the region to defend New Republic interests in the area. As the crisis escalated, the Fifth was reinforced with task forces pulled from other fleet commands, and Ackbar was forced to replace the current commander, General Etahn A'baht, since the Defense Council had lost confidence in his command abilities. Nantz was considered for the role, although Ackbar vetoed his appointment, persuading Alliance hero Han Solo to accept a commodore's commission and command of the force. Solo never reached the Fifth, however; his shuttle, Tampion, was captured by Yevetha forces en route to the fleet.[4] General A'baht retained command of the fleet, and mused in private with Commodore Farley Carson, of the Fourth Fleet'sTask Force Apex, that the only reason that neither Ackbar nor Nantz had been sent to assume command of the force was for fear of either of them being taken hostage as well. Despite several setbacks to the campaign, the Yevethan threat was ended by New Republic forces at the Battle of N'zoth, which included the rescue of Solo from his captors.[9]
Cadaverous and stooped,[2] Firmus Nantz was light-skinned and sported a mane of grayhair that he kept tied back, bushy sideburns that reached down to his cheek, and black eyebrows.[1] A superb tactician and battlefield commander who effectively commanded fleet elements in combat, Nantz won many significant victories during the New Republic's early years.[2] Nantz was able to accept the reality that conventional military strategy was not the only way to win battles, and had no compunctions about employing unconventional tactics when the need arose.[1] By 16 ABY, he was the most senior flag officer serving in the New Republic Defense Force hierarchy, second only to Admiral Gial Ackbar.[4]
Noted for his brutal honesty, Nantz did not shy away from frank assessments of what he did or the way he achieved it. He believed that an admiral's job was to "industrialize murder at a distance," and told a delegation of neutral planetary leaders as much.[2] His candid nature led the New Republic to keep Nantz away from politicians and civilians as they were afraid that the outspoken Admiral's views about his military operations would be regarded as offensive or insensitive.[5] In conversation with General Lando Calrissian following the latter's successful resolution to the Eiattu pirate problem, Nantz noted that casualties were the price the military paid for success when Calrissian lamented on the loss of some of his personnel.[1] He also advised to never interrupt the enemy while they were in the middle of committing a mistake.[2]
"Last week's endnotes about Admiral Nantz sparked a lively conversation, one in which it was noted that a distinctive-looking, unnamed officer from 'Lando's Commandos' might make a good Nantz. I ran the idea by Lucasfilm's Leland Chee, who blessed it. So Nantz now has a face."
―Jason Fry discusses the process behind the retconning of Nantz into Lando's Commandos[src]
Nantz's inclusion in The Essential Guide to Warfare was due to Jason Fry's liking of the Black Fleet Crisis trilogy. In endnotes written for The Essential Guide to Warfare, Fry likened his caustic personality to that of General William Tecumseh Sherman, who served in the Union Army during the American Civil War. Fry gave Nantz an expanded role in The Essential Guide to Warfare, involving him in several battles and attributing several quotes to him.[11]