Does it matter who exports the most?
The UK is part of the EU, still, as are France and Germany.
The EU has voted for an EU wide embargo on selling arms to Saudi, because they are used to kill the people of the Yemen, who seem to be forgotten about with all the problems of Syria.
"British and American military officials are in the command and control centre for Saudi airstrikes on Yemen, and have access to lists of targets, although they do not play any role in choosing them, the Saudi Arabian foreign minister has said.
Human rights groups, the European parliament and the UN have all expressed concerns about airstrikes by a Saudi-led coalition in Yemen, in support of the internationally recognised government.
Nearly 3,000 civilians have been killed in Yemen since full-blown civil war broke out in March, according to the UN. A million other people have been displaced and the country is now at serious risk of famine.
The UK government has been put on notice that it is in breach of international law for allowing the export of British-made missiles and military equipment to Saudi Arabia that might have been used to kill civilians."
It's the UK government that is in breach of international law.