The Humvee vehicles used by New Zealand soldiers killed in Afghanistan were all but retired by US forces several years ago because of their vulnerability to roadside bomb attacks.
Defence Force chief Lieutenant General Rhys Jones said yesterday no vehicle would have prevented the three deaths in Bamiyan, and that the Humvee was the only land vehicle in service that could navigate the rough road the patrol was travelling on.
However, coalition forces including those from the United States, Britain and Australia have been pushing through major upgrades to their patrol vehicles since improvised explosive devices (IEDs) became the weapon of choice of insurgents.
The New Zealand Provincial Reconstruction Team (PRT) depended on Light Armoured Vehicles (LAVs) and Humvees for patrols in Bamiyan - neither of which had significant protection against roadside bombs.
The United States military changed its policy on using Humvees for patrols as the number of reported IED incidents in Afghanistan rose from 81 in 2003 to 7228 in 2009. More than three years ago, USA Today reported that US soldiers needed approval of senior commanders to patrol in a Humvee.