The Royal Army of Oman protects the sovereignty of Oman. In terms of matériel, the Army is small but well equipped to the extent that external aggression is now realistically deterred.

The Omani army is qualitatively superior to that of many neighbouring countries with one regiment of British-built Challenger 2 main battle tanks and the other slightly larger regiment of M60 (predominantly M60A3) MBTs rounding out Oman's sole armoured brigade. Oman recently received 174 Piranha light armoured vehicles and over 80 VBL scout cars from France to further strengthen military capabilities. In terms of artillery, in the 1990s Oman received G6 155 mm howitzers from South Africa, and Oman's anti-tank capabilities are to be greatly strengthened by the soon-to-be-delivered 100 Javelin missiles from the United States. On a troop level, Oman's armed forces are frequently trained and briefed by the regular British Army and elite British Special Air Service (SAS).

In addition to the relatively high calibre of weaponry, Oman's close historical and military ties with Britain virtually guarantees Omani sovereignty, and strengthening relations with Washington assures the Royal Army of Oman of a quiet immediate future.

Oman (ⁱ/oʊˈmɑːn/ oh-MAAN; Arabic: عمان‎ ʻUmān), officially called the Sultanate of Oman (Arabic: سلطنة عُمان‎ Salṭanat ʻUmān), is an Arab state in southwest Asia on the southeast coast of the Arabian Peninsula. It is bordered by the United Arab Emirates (UAE) to the northwest, Saudi Arabia to the west, and Yemen to the southwest. The coast is formed by the Arabian Sea on the southeast and the Gulf of Oman on the northeast. The Madha and Musandam enclaves are surrounded by the UAE on their land borders, with the Strait of Hormuz and Gulf of Oman forming Musandam's coastal boundaries.

For a period, Oman was a moderate regional power, formerly having a sultanate extending across the Strait of Hormuz to Iran, and modern day Pakistan, and far south to Zanzibar on the coat of south-east Africa. Over time, as its power declined, the sultanate came under heavy influence from the United Kingdom, though Oman was never formally part of the British Empire, or a British protectorate. The Omani royal family claim that Oman has been ruled by the Al Said dynasty since 1744, although without substantial proof. Oman has long-standing military and political ties with the United Kingdom and the United States, although it maintains an independent foreign policy.

The British Army is the land warfare branch of British Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England and Scotland and was administered by the War Office from London. It has been managed by the Ministry of Defence since 1964.

The full-time element of the British Army is referred to as the Regular Army since the creation of the reservist Territorial Force in 1908. The British Army is deployed in many of the world's war zones as part of both Expeditionary Forces and in United Nations Peacekeeping forces. The British Army is currently deployed in Kosovo, Cyprus, Germany, Afghanistan and many other places.

All members of the Army swear (or affirm) allegiance to the monarch as commander-in-chief. However the Bill of Rights of 1689 requires Parliamentary consent for the Crown to maintain a standing army in peacetime. Parliament therefore annually approves the continued existence of the Army.