Question: The Royal Saudi Air Force Museum or "Saqr Al-Jazira" is located on the East Ring Road of Riyadh between exits 10 and 11, a Saudia Lockheed L-1011 Tristar serves as a gateguard visible from the ring road, the Saudia, is also known as Saudi Arabian Airlines, is the national carrier airline of which country?

Context paragraphs:
Royal Saudi Air Force Museum: The Royal Saudi Air Force Museum or "Saqr Al-Jazira" is located on the East Ring Road of Riyadh between exits 10 and 11.  A Saudia Lockheed L-1011 Tristar serves as a gateguard visible from the ring road.  Admission is 10 Saudi Riyals (SR)for adults and 5 SR for children.  The museum is open from 9:00am to 12:00 noon and from 4:00 pm to 8:00 pm daily, closed on Fridays

Saudia Flight 163: Saudia Flight 163 was a scheduled Saudia passenger flight which caught fire after takeoff from Riyadh International Airport (now the Riyadh Air Base) en route to Jeddah, Saudi Arabia on 19 August 1980.  All 287 passengers and 14 crew on board the Lockheed L-1011-200 TriStar (registration HZ-AHK ) died from smoke inhalation after the aircraft made a successful emergency landing at Riyadh.

Lockheed L-1011 TriStar: The Lockheed L-1011 TriStar, commonly referred to as the L-1011 (pronounced "L-ten-eleven") or TriStar, is a medium-to-long-range, wide-body trijet airliner by Lockheed Corporation.  It was the third wide-body airliner to enter commercial operations, after the Boeing 747 and the McDonnell Douglas DC-10.  The airliner has a seating capacity up to 400 passengers and a range over 4000 nmi .  Its trijet configuration has three Rolls-Royce RB211 engines with one engine under each wing, and a third engine, center-mounted with an S-duct air inlet embedded in the tail and the upper fuselage.  The aircraft has an autoland capability, an automated descent control system, and available lower deck galley and lounge facilities.

A4540 road: The A4540 is a Ring Road in Birmingham, England, also known as the Middle Ring Road, or the Middleway.  There are proposals to make it a red route.  It runs around the centre (St Philip's Cathedral) of the city at a distance of approximately 1 mi .  Birmingham City Centre is the area within this ring road.  The ring road was planned and designed by Herbert Manzoni.  It is now simply known as the Ring Road due to the removal of the old Inner Ring Road.

Armed Forces of Saudi Arabia: The Royal Saudi Arabian Armed Forces (Arabic: القُوّات المُسَـلَّحَة المَلكيَّة السُّـعُوديَّة‎ , "al-Quww? t al-Musalla? ah as-Su?? diyyah " ‎ ) is the Armed Forces, consists of the Saudi Arabian Army, the Royal Saudi Air Force, the Royal Saudi Navy, the Royal Saudi Air Defense, and the Royal Saudi Strategic Missile Force.

Saudia: Saudia (Arabic: السعودية‎ ‎ "as-Suʿūdiyyah "), also known as Saudi Arabian Airlines (الخطوط الجوية العربية السعودية), is the national carrier airline of Saudi Arabia, based in Jeddah.  The airline's main operational base is at King Abdulaziz International Airport in Jeddah.  King Khalid International Airport in Riyadh and King Fahd International Airport in Dammam are secondary hubs.  The new Dammam airport was opened for commercial use on 28 November 1999.  Dhahran International Airport in use until then, has reverted to being used as a military base.  The airline is the third largest in the Middle East in terms of revenue, behind Emirates and Qatar Airways.  It operates domestic and international scheduled flights to over 120 destinations in the Middle East, Africa, Asia, Europe and North America.  Domestic and international charter flights are operated, mostly during the Ramadan and the Hajj season.  Saudia is a member of the Arab Air Carriers Organization and joined the SkyTeam airline alliance on 29 May 2012.

Hotat Bani Tamim: Hotat Bani Tamim (Arabic: حوطة بني تميم‎ ‎ ) is a Saudi Arabian town, adjacent to Riyadh.  Its population is about 40,000.  Hotat Bani Tamim is located 135 km south of Riyadh southern ring road .  It is situated at Highway which leads to Wadiay Dawasar , Abha, Khamees meshiat and Yemen border.Now a new road starting near Hiar links howtat bani Tamim directly with Riyadh . Now travelling time is much decreased from Howtat Bani Tamim to Riyadh.

King Abdulaziz Air Base: King Abdulaziz Air Base (IATA: DHA, ICAO: OEDR) , formerly Dhahran International Airport and Dhahran Airfield is a Royal Saudi Air Force Air Base located in Dhahran in the Eastern Province of Saudi Arabia.  It's the first airport ever built in Saudi Arabian soil.  It was operated by the United States Air Force (USAF) from 1945 until 1962.  After use by the USAF, Dhahran Airfield became Dhahran International Airport, as well as the co-located King Abdulaziz Air Base of the Royal Saudi Air Force (RSAF).  The military relationship that exists today between the United States and Saudi Arabia was highly influenced by the origin and development of this airfield.  The base is close to other major cities in the area including Al-Thuqbah (5 km to the east), Khobar (5 km to the southeast), and Dammam (25 km to the northwest).

Saudia Aerospace Engineering Industries: Saudia Aerospace Engineering Industries (SAEI) is the maintenance, repair and overhaul (MRO) division of SAUDIA airlines based in Jeddah, Saudi Arabia at King Abdulaziz International Airport.  With more than 5,000 Technical Operations employees and 45 maintenance stations worldwide, It provides aircraft maintenance, repair, and overhaul services.  SAEI holds a Part 145 FAA Repair Station certificate.  It is part of Saudi Arabian Airlines.

Royal Saudi Air Force: The Royal Saudi Air Force (RSAF; Arabic: القوات الجوية الملكية الـسعودية‎ ‎ , "al-quwat al-jawwiyyah al-malakiyyah as-sudiyyah "), is the aviation branch of the Saudi Arabian armed forces.  The RSAF has developed from a largely defensive military force into one with an advanced offensive capability.  The RSAF maintains the third largest fleet of F-15s after the American and Japanese air forces.

Supporting paragraphs: Royal Saudi Air Force Museum Saudia
Answer: Saudi Arabia