http://www.bdf.gov.bh/
Royal Bahraini Army was created in 1977.
The Royal Artillery is responsible for the firepower of the British Army and copious regiments across the United Kingdom and a few in the North-Western region of Germany. According to the British Army website, the Royal Artillery supplies the British Army with radars.
The Royal Marines are part of the Royal Navy and nothing to do with the Army.
The Cpol Army Mil website is the official homepage of the United States Army Civilian Personnel. It provides information relating to various Civilian Personnel positions in the U.S. Army.
Men's watches can be purchased from the official Swiss Army website. There are also authorized dealers in countries all over the world. The official website offers the ability to find a dealer located near you.
The Royal Navy first came into operation in the early 16th century but the British (or Royal Army) was set up in 1707. So therefore the Royal Navy is the oldest. Hope this help you! Addendum: The UK does not have a Royal Army. The navy and the air force are Royal, but the army is just the British Army. We do have various regiments and corps that are Royal though.
Royal Yugoslav Army was created in 1919.
Royal Thai Army was created in 1874.
Royal Cambodian Army was created in 1953.
Royal Bhutan Army was created in 1950.
There are many places one might go to purchase an army cap. In addition to an official brand website, one might also try purchasing from the Amazon website.
The senior official at the Department of the Army is the Secretary of the Army