![Theoretically speaking, could Vatican City declare war on another country? If so, what military forces would it use, their Swiss Guards or would they need an allies' army to fight a war? - Theoretically speaking, could Vatican City declare war on another country? If so, what military forces would it use, their Swiss Guards or would they need an allies' army to fight a war? -](https://qph.cf2.quoracdn.net/main-qimg-577ea23e8d3e6b7491c8459fe36319ef.webp)
Theoretically speaking, could Vatican City declare war on another country? If so, what military forces would it use, their Swiss Guards or would they need an allies' army to fight a war? -
Catholic News Agency on Twitter: "Today #PopeFrancis celebrated special #jubilee for members of the military, armed forces & firefighters # Vatican https://t.co/dnu0CJwAQj" / Twitter
![The Pope's Private Army – 10 Fascinating Facts About the Vatican's Swiss Guards - MilitaryHistoryNow.com The Pope's Private Army – 10 Fascinating Facts About the Vatican's Swiss Guards - MilitaryHistoryNow.com](https://militaryhistorynow.com/wp-content/uploads/2014/12/swissguard.jpg)
The Pope's Private Army – 10 Fascinating Facts About the Vatican's Swiss Guards - MilitaryHistoryNow.com
![Catholic News Agency on Twitter: "Today #PopeFrancis celebrated special #jubilee for members of the military, armed forces & firefighters # Vatican https://t.co/dnu0CJwAQj" / Twitter Catholic News Agency on Twitter: "Today #PopeFrancis celebrated special #jubilee for members of the military, armed forces & firefighters # Vatican https://t.co/dnu0CJwAQj" / Twitter](https://pbs.twimg.com/media/ChSOc41W4AABuoW.jpg)
Catholic News Agency on Twitter: "Today #PopeFrancis celebrated special #jubilee for members of the military, armed forces & firefighters # Vatican https://t.co/dnu0CJwAQj" / Twitter
![An Italian special forces officer stands guard near St. Peter's Square in Rome, Italy Stock Photo - Alamy An Italian special forces officer stands guard near St. Peter's Square in Rome, Italy Stock Photo - Alamy](https://c8.alamy.com/comp/J19CT0/an-italian-special-forces-officer-stands-guard-near-st-peters-square-J19CT0.jpg)