The Sultanate of Oman (سلطنة عمان) has been in existence since at least the late 17th century, during which time it exerted considerable influence over the Persian Gulf and parts of the Indian Ocean. The capital of Muscat had been occupied by Portugal for nearly 150 years, beginning in 1507 CE. The current ruling line of sultans first took control in 1741 when the leader of an Omani tribe wrested lands from those who had previously ousted the Portuguese. The country today is an absolute monarchy under hereditary leader Sultan Qaboos bin Said al Said, who deposed his father in 1970.
Oman has long based its own military traditions on those of the British Armed Forces, and this influence continues well into the present era. Although relatively small by international standards, the Sultan of Oman's Armed Forces (القوات المسلحة لسلطان عمان) are well-trained and have benefited from a long-standing relationship with the British Army (and Royal Marines), in which large numbers of officers and NCOs are seconded to the SOAF as instructors. The present makeup of the armed forces consist of the Royal Army, Royal Navy, Royal Air Force, the Royal Guard (which includes Special Forces), and the Royal Oman Police. Although a wide number of camouflage patterns have been worn by the Armed Forces and paramilitary units of Oman, they are all based around the original British Disruptive Pattern Material (DPM) design that was introduced in the 1960s.
The earliest usage of camouflage by the Sultan of Oman's forces can be unquestionably linked to the longstanding relationship the nation has formed with the United Kingdom. Vintage photographs illustrate members of the Royal Guard wearing what appear to be standard British DPM pattern uniforms, either obtained through British military sources or via contract with British manufacturers.