This is Station Commander Grezzko Desro of Dezendyan 5! We are under attack by Vás ships! Requesting immediate support!
—Grezzko Desro, commander of space station Dezendyan 5 requesting help from Dezendyan 1 during the Vás' hit-and-run attack on Dezendyan 5, which escalated the feud to a war
The Dezendyan-Vás Feud (called the Dezendyan Theatre by the Ingzan-Bregaran Empire during their time fighting the House of Vás alongside their Dezendyan allies) was a feud between two rival families the House of Dezendyan (member of the Imperial Tripartite Alliance), supported by their cousins, the House of Veko, and the House of Vás (allied with the Allied Armies Against Ingzan-Bregaran Imperialism) over who controlled transport and cargo haulage in the Zerrekazi system (renamed the Dezendyan system after the feud) which was part of the Ingzan-Bregaran Empire.
The feud began in 1,102 ABY but was not an aggressive one, it was largely restricted to trying to smear the rival company's name however in 1,129 ABY the feud escalated to a war when the House of Vás suddenly changed tactics and performed a hit-and-run attack against the space station Dezendyan 5.
The feud can be traced back to 980 ABY, when the House of Vás first arrived in the Zerrekazi system and set up a transport company called the Vás Utility Transportation Company, this system was already served by the long-established Dezendyan Corporation. At first the House of Dezendyan paid little attention but by 1,102 ABY it was clear the Vás' transport business was becoming strong and rivalling them, in an effort to protect there business interests the Dezendyan tried to turn support away from the Vás by a smear campaign, when the Vás heard of this they did there own smear campaign against the Dezendyan and for the next 27 years they tried to destroy each other through smear campaigns and other non-aggressive means.
By 1,129 ABY however it looked as if both sides were ready for war, the House of Dezendyan had a large private military which was made up of the House of Dezendyan Navy and House of Dezendyan Security Force, which was effectively a private army using many Imperial weapons and armoured vehicles. The House of Vás also had a navy and security force, but it was not as big as the Dezendyan one as it was still being built.
The Vás made the first move by launching a hit-and-run attack on Dezendyan 5 station, which escalated the feud to a war.