Just for the record the post-WW2 emigration from the UK to Australia was significant, with over a million leaving; see: http://open2.net/timewatch/2008/tenpoundpoms.html

This item is from the excellent BBC TV series Timewatch: http://www.bbc.co.uk/timewatch , which did a programme in 2003 reviewing the Gallipoli campaign, alas not readily found on the net; it featured the developments between landings with the first proper landing craft and the evacuation.

davidbfpo