Reform
Reform was a process in which a government or other entity was changed.

Several major species' governments had their military forces seize control of civilian government. These included the Vulcan High Command, the Klingon Defense Force, and the Cardassian Union.

In 2154, discovery of the Kir'Shara led to the Vulcan Reformation. ()

In 2364, Chancellor Avel Durken was instituting social reforms on his home planet, Malcor III. ()

Although Klingons would like to forget it, The Dark Time, a period when Qo'noS experimented with democracy, produced several reforms. ()  

In the mirror universe,  preached reform of the Terran Empire. Shortly after, Spock became Commander-in-Chief of the Empire and instituted his reforms. Unfortunately, these peaceful reforms resulted in the fall of the Empire. ()

In the middle of the 2370s, Grand Nagus Zek, with help from Ishka, began to institute several reforms of the Ferengi Alliance. These reforms included the introduction of taxes which were used to fund social programs such as wage subsidies for the poor, retirement benefits for the elderly and health care. The reforms also included the necessity of "receipts" for bribes – as they had now become tax-deductible. The Nagus also created the Congress of Economic Advisors. Other reforms made waste dumping illegal and established equal rights for all. ()

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Government