Berlin - British Prime Minister David Cameron sought to push forward his campaign for changes to the European Union during a visit to Germany on Thursday, arguing that his proposals would benefit the EU as well as Britain.
Cameron was in the Alps for a meeting of the Christian Social Union, the Bavaria-only sister party to Chancellor Angela Merkel's conservatives. He also met Merkel at the gathering.
Cameron has committed to holding a referendum on Britain's EU membership by the end of 2017. Before that, he is seeking a new deal for Britain, most controversially including welfare limits for other EU nationals intended to control migration.
He hopes to seal a deal at an EU summit next month and hold the referendum later this year.
"I'm confident with good will - and there is good will, I think, on all sides - we can bring these negotiations to a conclusion and then hold the referendum," Cameron said after meeting the CSU's lawmakers.
He said that Britain, like EU heavyweight Germany, believes in the free movement of workers "but we want to make sure that ... our welfare system is not an unnatural draw to Britain."
Cameron said that the changes he wants "will benefit the EU too and Germany can help deliver them."
Merkel on Wednesday called for work toward "decisions that could lead, out of our own interest, to getting a sensible package so that Great Britain can remain part of the EU."
Cameron on Thursday will travel to Hungary, an EU member since 2004 whose government has frequently been at odds with Brussels but whose citizens also have benefited from the opening of western European labour markets.