The European Union is urging member states to take advantage of the bloc's recovering economy to strengthen public finances.
David Davis has warned that Britain will walk away from the Brexit negotiating table unless the EU drops calls for the UK to cough up €100bn when it leaves.
France's new Armed Forces Minister Sylvie Goulard has vowed to press ahead with European defence projects and work more closely with Germany.
Turkish President Erdogan will meet with top European Union officials in Brussels to discuss relations between both sides before the NATO summit.
The chancellor and her finance minister are set to push for Bundesbank President Jens Weidmann to become the fourth guardian of the single currency.
European Union officials are preparing for talks on Britain's exit from the bloc to begin on June 19 but expect confirmation of the date only after the British election on June 8.
Only a political process led by the different Syrian groups and supported by the UN could end a war in Syria and the EU should take a more active role.
The European Parliament approved a report which advocates extra checks to ensure the EU legislates only on areas not best left to member states and that the legislation is fit for purpose as well as proportionate
EU foreign affairs chief Federica Mogherini said remaining differences over a planned military headquarters had been resolved and it could be formally launched in a few days.
The EU and the African, Caribbean and Pacific Group of States (ACP) made the call at a UN climate change conference taking place in Bonn.