In NATO, the officer in tactical command (OTC) is the naval officer exercising tactical command of a group of ships in a tactical formation such as a task unit, task group, or task force.
Ships travelling together on a specific mission might have one of the commanding officers designated OTC. On occasion, an officer senior to the ships' captains (a senior captain, a commodore, or an admiral) will be embarked specifically to take command of the formation and exercise the function of OTC.
The OTC is only empowered to direct the assigned forces for the specific purposes designated by the officer exercising operational command over the formation. The OTC may not reassign forces for another purpose.
TCV // In 2005, the Bureau of Indian Affairs needed a fast-deploy command solution to serve millions of remote acres. What started as a napkin sketch now serves organizations of all types in need of safety, security, connectivity, and on-the-move ops.
TCV-X // All the rugged performance of the original TCV on a longer single cab chassis, for missions requiring less on-the-move workspace. Large, climate-controlled command shelter is configurable with up to four ergonomic workstations, plus additional seating.
Airmen assigned to the 621st Air Control Squadron simulate mobile command and control (C2) from a vehicle at Yongin Army Base, Republic of Korea, Aug. 31, 2022. The 621st ACS conducted tests of their mobile tactical C2 vehicle and its capabilities across the Korean peninsula throughout the month of August. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)
U.S Marine Corps. Sgt. Jaden Mensalvas, intelligence analyst, and Senior Airman Jonas Cole, 621st Air Control Squadron cyber systems operations technician, mount a computer screen in a mobile tactical command and control (C2) vehicle at Yongin Army Base, Republic of Korea, Aug. 31, 2022. The 621st achieves command and control of joint air operations by conducting surveillance identification, weapons control, battle management and theater communications data link. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)
Capt. Cory Yslas, 621st Air Control Squadron chief of weapons and tactics connects an ultra high frequency antenna in the bed of a mobile tactical command and control (C2) vehicle at Yongin Army Base, Republic of Korea, Aug. 31, 2022. The 621st ACS mobile tactical C2 vehicle aims to expedite C2 operations while on the move. This enables the ability to integrate beyond line of sight and line of data into a unified common operational picture. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)
Senior Airman Jonas Cole, 621st Air Control Squadron cyber systems operations technician, connects ultra high frequency radios, in a mobile tactical command and control (C2) vehicle at Yongin Army Base, Republic of Korea, Aug. 31, 2022. The 621st ACS mobile tactical C2 vehicle will allow the execution of Agile Combat Employment at austere locations while integrating directly with the 607th Air Support Operations Group, 607th Air Operations Center and the 35th Air Defense Artillery Brigade. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)
Airmen assigned to the 621st Air Control Squadron set up their mobile tactical command and control (C2) vehicle at Yongin Army Base, Republic of Korea, Aug. 31, 2022. The 621st ACS integrated with Tactical Air Control Party Airmen and Materials Maintenance Squadron Airmen from the 607th Air Support Operations Group to share information and compare communication platforms to improve their mobile tactical C2 vehicle. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)
U.S Marine Corps. Sgt. Jaden Mensalvas, 621st Air Control Squadron intelligence analyst, installs an ultra high frequency radio in a mobile tactical command and control (C2) vehicle at Yongin Army Base, Republic of Korea, Aug. 31, 2022. The 621st ACS mobile tactical C2 vehicle will allow the execution of Agile Combat Employment at austere locations while integrating directly with the 607th Air Support Operations Group, 607th Air Operations Center and the 35th Air Defense Artillery Brigade. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)
Col. Scott Morgan, 607th Air Support Operations Group (ASOG) commander and Airmen assigned to Osan Air Base brief Col. Lee, Dae Ok ASO Wing, Air Support Coordination Center, commander, on command and control contingency operations at Yongin Army Base, Republic of Korea, Aug. 31, 2022. The 607th ASOG is primarily responsible for supporting the Korean Theater Air Control System by maintaining ground radar sites. (U.S. Air Force photo by Staff Sgt. Dwane R. Young)
The Inexpugnable-class tactical command ship was disc-shaped, with an opening in its center. At 3,100 meters in diameter, it was often described as a mobile space station. The bridge was innovative in design; holograms were projected over a transparent deck on the bridge, providing a merger of electronic and visual data and facilitating command. This bridge design, referred to as the "wishing well" by Republic helmsmen, could sometimes produce vertigo. The Inexpugnable-class was operated by a crew of 4,300 Republic officers and enlisted personnel. It also carried a total of 2,000 troops. The class could carry up to 50,000 metric tons of cargo and enough consumables for optimal ship and crew operations for two years.
The Inexpugnable-class served as a command ship in the Republic Navy. Rendili Hyperworks and Rendili/Vanjervalis Drive Yards designed it in order to sell more Hammerhead-class cruisers to the Republic. Weapons coordination during the Mandalorian Wars became a major concern for Republic tacticians, as Republic lines were often defended by dozens of Hammerhead-class cruisers. The Inexpugnable-class was designed with an enhanced sensor package and an innovative bridge design, which allowed a flag officer to command a fleet of up to sixty-four Hammerhead-class cruisers at once. The Inexpugnable-class's many large hangar bays allowed it to rapidly deploy its fighter squadrons, but also made the ship vulnerable to ramming attacks and boarding operations. The role of command ship was later taken up by the smaller Centurion-class battlecruiser.
Prior to the Republic's involvement in the Mandalorian Wars, the Republic determined the need for a tactical command ship to coordinate the large fleets of Hammerhead-class ships defending its lines. The proof-of-concept Swiftsure was built at some point prior to the Mandalorian Wars. Less than half a dozen Inexpugnable-class prototypes were constructed before the outbreak of the Mandalorian Wars, designed by Rendili Hyperworks and launched from the Rendili/Vanjervalis Drive Yards at Corellia. This new line of command ships, at an estimated cost of 70,000,000 credits, effectively replaced the Republic's older command ships, such as the Reliance I. One of those prototypes was the Courageous. The production line also included the Indefatigable and the Tremendous. They were nicknamed "Inexies" by Republic crewmen.
At the end of 3964 BBY, the Mandalorian Wars finally hit the Republic when Mandalorian fleets attacked Vanquo and Taris. Inexpugnable-class vessels served as large command ships and battle group flagships in the Republic Navy during the Mandalorian Wars. The Courageous, commanded by then-Captain Saul Karath, led its battle group against the Mandalorians during the Battle of Vanquo. In early 3963 BBY, at Serroco, following an intense Force vision, Zayne Carrick, the Jedi apprentice accused of committing the Padawan Massacre, stowed aboard Lieutenant Carth Onasi's ship, the Conductor-class landing craft Deadweight, to warn Karath of an upcoming Mandalorian attack. However, Karath immediately recognized Carrick as a fugitive and imprisoned him in the Courageous's brig, ignoring the warning. As predicted, the Mandalorians attacked Serroco in force, using nuclear missiles to destroy cities and Republic troops on the planet's surface. Following the attack, the Courageous was boarded and captured by the Mandalorians. However, Karath, Carrick, and Onasi were able to escape, as Carrick had used the Force to dismantle the wall in his prison cell, allowing them to access the Deadweight in the Courageous's landing bay. The Courageous was taken by the Mandalorians and recycled for their own use; Mandalore the Ultimate later claimed that his battle-axe was forged from the Courageous's hull. The remnants of the Courageous battle group joined the Tremendous and its own battle group, while now-Admiral Karath transferred his flag to the Swiftsure shortly after the First Battle of Omonoth. Another Inexpungable-class that served was the Diligence, captained by Dallan Morvis.
After the Battle of Serroco, the remaining Inexpugnable-class ships, including the Swiftsure, the Tremendous, and the Indefatigable, were equipped with a new sensor package that allowed them to use tactics such as the Vanjervalis Chain, an advanced sensor system that slaved the controls of up to sixty-four Hammerhead-class cruisers, predicted enemy movements, and adjusted the fleet for maximum efficiency. The Swiftsure was the first to be fitted with the system by the manufacturers, and became the basis for the production model. Karath, in command of the Swiftsure, used the Vanjervalis Chain to protect the Republic capital of Coruscant from any attack or infiltration, specifically so that Republic and Jedi forces might intercept Carrick, whom the Jedi Covenant believed was going to attack their operations on Coruscant. However, Haazen, the secret leader of the Jedi Covenant, was able to control all Republic ships linked to the Vanjervalis Chain, since he had directed the Draay Trust to purchase Vanjervalis Systems, and integrated fleet remote controls into Haazen's Sith artifact, the Gauntlet of Kressh the Younger. He commanded Karath's fleet, including the Swiftsure, to attack the Republic strike team threatening his plans. Haazen's Vindication, the Jedi Covenant's insurrection against the Jedi Order, was stopped when Carrick and his former Master, Lucien Draay, retrieved the Gauntlet of Kressh and used it to command the Swiftsure and the Republic fleet to fire upon both Haazen and the Draay Estate on Coruscant's surface. 041b061a72