The selection process for the combat positions is divided into two phases: a three-week-long physical and psychological training regimen (normally having a 40% pass rate), and later a three-month-long physical endurance phase (normally with an 8–10% pass rate).
選拔過程分為兩個階段：一個為期三週的生理和心理訓練方案（通常合格率約40％），接著是三個月之久的體能耐力階段（通常合格率約8 - 10％）。