Summary: As Nato celebrates its 70th birthday, Sitrep looks ahead to next week’s summit hosted in the UK with Elizabeth Braw from RUSI Professor Scott Lucas from the University of Birmingham, and former director general of RUSI, Professor Michael Clarke. The Tories and SNP launched their election manifestos this week. And a new book "Tipping Point, Britain, Brexit and security in the 2020s" by Michael Clarke and Helen Ramscar looks at Britain and its security strengths and weaknesses in the 2020s.
