It would help if just Saint Vincent would be accepted as it is usually on this site. I tried many times to wrote it. I also have seen stats that Vatican has the biggest army in the world (compared to population) as there is Swiss guard.
The Swiss Guard aren't the military of Vatican City. They are officially under the Holy See and serve the Pope as part of his job as head of the Catholic Church. They aren't a military or police unit under the state of Vatican City. They are the de facto military of Vatican City, but officially they aren't.