EU leaders to discuss mutual assistance pact amid NATO doubts

By Lili BayerBRUSSELS, April 23 (Reuters) - European Union leaders will discuss the bloc's mutual assistance clause at a summit in Cyprus on Thursday, as U.S. President Donald Trump's criticism of traditional allies raises concerns over his commitment to NATO at a time of growing insecurity.The clause, contained in the treaty that underpins the EU, obliges countries to come to the aid of a fellow member if it comes under attack. But officials say there are currently no clear rules about how it should work in practice.