European countries temporarily halted arms exports to Turkey after its military incursion into Syria. But Europe’s other arms trading partner, Saudi Arabia, has caused deaths or injuries of 18,000 in Yemen, where 24.1 million need humanitarian assistance. Despite these figures, EU countries still have arms deals with the Saudis. The UK only halted arms exports in June after exports licences were found to be unlawful. Saudi Arabia was France's second-biggest weapons client last year: over €1 billion worth, including armoured vehicles used in or near Yemen. Only Spain suspended arms exports to Saudi Arabia, citing ‘use of this type of armament against a civilian population’. Why would EU countries halt arms to Turkey due to conflict, but not to Saudi Arabia for the same reasons? There could be several reasons, but two stand out - business and alliances.