The future of collective securityNato summit tests diplomacy and highlights the need for a common defence strategyCrisis, what crisis? The US needs Nato as much as everQuitting Europe would see Washington deliver to Beijing its most important strategic ambitionHow to fix NatoEmmanuel Macron’s doubts about the alliance deserve a serious responseTrump, Obama and their battle with the ‘blob’The Nato summit underlines a surprising continuity in US foreign policyA grand bargain for Europe might yet be possibleSecurity and climate change will be high on Ursula von der Leyen’s list of prioritiesNato needs to reassert its common purposeThe leaders of the western alliance should restore mutual trustThe west has a choice: back Ukraine or improve relations with RussiaVladimir Putin’s support for secessionist rebels has backfiredMore from this SeriesLetter: Britain should reconsider its costly and futile military presenceFrom Richard Reeve, London, UKDonald Trump brands Justin Trudeau 'two-faced'US president attacks Canadian leader after apparent mockery at Nato summit
![UNDATED FILE PHOTO - File photo of fuel tanks at the edge of a Military airstrip on Diego Garcia, largest island in the Chagos archipelago and site of a major United States military base in the middle of the Indian Ocean leased from Britain in 1966. Exiled inhabitants of Diego Garcia began a challenge July 17 to a British government decision to kick them off the remote island 30 years ago to make way for the U.S. base. [Thousands of islanders from the 65-island Chagos archipelago, many of them born in exile in Mauritius, want Britain to return them to their homeland]](https://www-ft-com.ezproxy.cul.columbia.edu/__origami/service/image/v2/images/raw/https%3A%2F%2Fwww.ft.com%2F__origami%2Fservice%2Fimage%2Fv2%2Fimages%2Fraw%2Fhttp%253A%252F%252Fcom.ft.imagepublish.upp-prod-eu.s3.amazonaws.com%252F012fa672-12e5-11ea-a7e6-62bf4f9e548a%3Fsource%3Dnext-article%26fit%3Dscale-down%26quality%3Dhighest%26width%3D700%26dpr%3D1?source=next&fit=scale-down&dpr=2&width=240)
