‘Summitry’ was a regular part of the Cold War. The USSR and the USA faced each across the Iron Curtain with separate alliances, the North Atlantic Treaty Organisation and the Warsaw Pact. Their leaders could not meet as part of one organisation, without recognising the unrecognisable: the West did not recognise the division of Berlin. In 1963 John F. Kennedy proclaimed across the Berlin Wall: ‘Ich bin ein Berliner’.
But US and Russian Presidents did meet in ‘summits’. And Archbishop Justin Welby has called a summit of Anglican Primates in Canterbury for 11–16 January 2016 in these words:
‘I have suggested to all Primates that we need to consider recent developments but also look afresh at our ways of working as a Communion and especially as Primates, paying proper attention to developments in the past.