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This year's Dubai Airshow is set to be the biggest so far, with more than 1,100 exhibitors and some 65,000 trade visitors expected this week. Defence is taking centre-stage because of the conflicts in Yemen and Syria. Here are some of the highlights so far:
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"There is an appetite for aircraft in the Middle East - we aim to help the market understand what's available," says Michele van Akelijen, of the airshow's organisers F&E Aerospace
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Air campaign against Islamic State (IS): Speaking at the show, US Air Force Secretary Deborah Lee James said air strikes were working but would also need local boots on the ground
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Gulf countries are set to spend on new defence orders as the conflicts in Yemen and Syria prompt militaries to replenish their arms
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Europe's Eurofighter Typhoon: Saudi Arabia, Oman and now Kuwait have bought the plane - and the Saudi air force is using them over Yemen
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The USA's most sophisticated fighter, the F-22 Raptor, put in an impressive performance - but the US will not sell it to overseas customers to protect its stealth technology and other features
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Boeing is hoping to export up to 50 of its Bell Boeing V-22 Osprey tilt-rotor in the next four years, half of which could be bought by Gulf countries
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France's Rafale fighter going through its paces: Egypt bought 24 of the jets in a $5.6bn (£3.7bn) deal announced earlier this year
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A visitor takes a closer look at a US Apache attack helicopter: Boeing is looking for new orders for this and its smaller AH-6i helicopter, which Jordan and Saudi Arabia have already bought
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The UAE is buying two of Saab's Global 6000 military surveillance planes and upgrading two others for $1.27bn
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The defence industry typically represents half of the displays at the Dubai Airshow
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Among the aerobatic teams this year were the Italian air force's Frecce Tricolori in their Aermacchi MB-339 trainers
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And the UAE air force's Al-Fursan aerobatics team - also flying Aermacchi MB-339s
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Organisers ensured the show got off to a good start on the orders front with $30bn (£19bn) worth of deals signed on Monday
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Notable deals so far include Vietnam's carrier Vietjet, which has signed a $3.6bn order with Airbus for 30 of its A321 airliners
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And Boeing, which has signed an $8bn agreement to build 75 Boeing 737s for India's Jet Airways
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But this year's show is unlikely to rival the previous event's record number of civilian deals as carriers already have 750 outstanding orders for jets with the manufacturers