Resistance to interrogation, RTI or R2I is a type of military training to British and other NATO soldiers to prepare them, after capture by the enemy, to resist interrogation techniques such as humiliation and torture.
The trainees undergo practices such as hooding, sleep deprivation, time disorientation, prolonged nakedness, sexual humiliation and deprivation of warmth, water and food.
[1] In such interrogation sessions, the subjects must maintain dead silence regardless of the practice being inflicted on them.
Standard RTI for most special military branches of American and European governments covers both tortures that are condemned by the United Nations and interrogation techniques that are considered legitimate, usually presented along a sliding scale.
The Guardian has reported that according to a former British special forces officer, the acts committed by U.S. Army soldiers who committed torture and prisoner abuse at Abu Ghraib resembled the techniques used in RTI training.