Situation in which 25,000 or more refugees from the same nationality have been in exile for five or more years in a given asylum country.
Refugee Studies Centre, [Permanent crises? Unlocking the protracted displacement of refugees and internally displaced person](https://www.rsc.ox.ac.uk/files/publications/policy-briefing-series/pb-unlocking-protracted-displacement-2011.pdf), 10.2011 (7.9.2016).
UNHCR, Global Trends, [Forced displacement in 2015](http://www.unhcr.org/576408cd7.pdf) (7.9.2016).