Question: The Pope is protected by the Swiss Guard, which is the oldest active military unit in continual existence since 1506. Who is credited with designing the Swiss Guards' uniforms and where (in what country or countries) do they complete their military training?
Answer: The current uniform was designed not by Michelangelo, as often thought, but rather by Commandant Jules Repond (1910-1921) who was influenced by Raffaello. Military training is done in Switzerland and in Rome (Italy).
Read more
http://www.vatican.va/roman_curia/swiss_guard/swissguard/divisa_en.htm
https://www.newlyswissed.com/facts-about-the-swiss-guards/