Introduction -- Applying the iron fist in Chechnya and Sri Lanka -- Twice successful, still challenged : insurgency in 21st-century southern Philippines -- Counterinsurgency at home : perseverance in Northern Ireland -- Counterinsurgency lessons from a civil war : Sierra Leone -- Interdicting insurgency : applying a comprehensive approach in the Solomon Islands -- Taking on criminal insurgency : Colombian success against the FARC -- The operational oil spot and rise of the militias : COIN in Iraq's al Anbar province -- Further contemplation on revised beliefs -- Additional recommendations and concluding thoughts.