Abstract: The clinical activity data collected by Bailey et al 1 during Op TRENTON roulements 2 and 3A from 19 June 2017 to 24 September 2017 proved useful during pre-deployment preparation for subsequent Op TRENTON roulements 3B, 4A, 4B and 5A from 25 September 2017 to 25 October 2018. We updated and continued this data collection using the same methods in order to obtain a complete data set for the whole of the Op TRENTON deployment and to look for trends. During the whole 16-month deployment period from 19 June 2017 to 25 October 2018, a total of 576 patients were seen at the UK level 2 hospital, including those ‘bedded down’ by the UK level 1 primary healthcare team. As previously reported, 286 (50%) of these were admitted during the first three months of the deployment,1 and most of the data reported at that stage were similar in percentage terms to our findings for the whole deployment (Table 1). However, there were some significant differences in the clinical activity between the first three months and the remaining 13 months (Table 1).