This Survey analyses Military Expenditure ["ME"] developments in 27 NATO countries (excluding Iceland) for the 2010-15 period, based on the data released by the NATO Headquarters on 22 June 2015, and also makes projections for the coming five years up to 2020. US military spending constitutes about 35 per cent of Global ME while other NATO countries together account for about 18 per cent, meaning that NATO military spending represent more than half of Global ME (according to SIPRI data). During the last five years 2010-15, most NATO countries have, for various reasons, reduced their ME and Total NATO military spending has consequently declined. Projections are also made for each of the 27 NATO countries for the coming five-year period 2016-20, by relating data from national policy documents to the noted NATO data. During the coming period, most NATO countries will no longer reduce their ME, but have stable or increasing ME, meaning that the coming five year period will look quite different compared to the past period.