History of the Swiss GuardThe Swiss Guard unlike the rest of the USC Military does not deploy during times of war but protects His Holiness the Pope himself.
During the Asian-Christian War they killed almost fifteen Asian spies attempting to assasinate the Pope. But they were other-wise just simply served as the protectors of the Vatican.
They during this time allowed non-Swiss peoples into the guard but they had to take an oath of abstinence, an oath of allegiance, be Christian, show a high moral standard, be born on Earth, be male, and speak German, English and Italian. This swelled the numbers of the Swiss Guard to many times the old size.
The Swiss Guard were the first to face the rebels as the rebels attacted the Praefactus Cardinalis's on many planets during the first phase of thier plan. The Swiss Guard fought them with harshness not seen in the Swiss Guard since the Kingdom of Italy conqured the old Papal States. The Swiss Guard took no prisoners and killed all who stood in their path. They were finally seen as an actual military unit by the general populous for the first time. They crushed any rebellious atitude with a swift and ferocious retaliation. When they finally captured the Rebel Leaders on Mars they gave a public execution by killing them with their very functional halberds.
Human-Covenant WarThe Swiss Guard in the Human-Covenant War oversaw the evacutation of the Cardinals from hundreds of worlds as they were all brought to Earth for protection. After that job was complete they made an even stricter grip on any rebelious peoples often hanging any-one for even speaking against the government as a rebellion whould be unspeakably disasterous during this war. After the Sangheili and Mgalekgolo allied with Humanity the Pope added another requirement that the Swiss Guard can only be Humans.
Post Human-Covenant War
The Commandent of the Guard issued a report that he expects that the Swiss Guard will remain in place for a very long time and that the furture of humanity is looking ever brighter.
When the Nuremberg Laws were first passed the Swiss Guard acted as the Inquistors and the last Swiss Gaurd divisions being used as Inquisitors ended on August 20, 2280.