VALLETTA, MALTA - FEBRUARY 03: British Prime Minister Theresa May and Donald Tusk, President of the European Council, look out over Valletta Harbour with other European counterparts after attending the first working session of an informal summit on February 3, 2017 in Valletta, Malta. Theresa May attends an informal summit of the 27 EU leaders to brief them on her recent meeting with President Trump. She has secured a guarantee from Trump that he is 100% supportive of NATO and she will encourage the EU countries to contribute the agreed 2% of their GDP on defence. (Photo by Stefan Rousseau/Getty Images)
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