This video was posted by the Defense Forces of New Zealand and documents a haka performed for 'allen comrades killed in Afhganistan. The youtube blurb says:
. There is a haka for each of the Services, as well as the Defence Force. Units with the NZ Army have their own haka. This video shows the soldiers of 2/1 RNZIR Battalion performing their Unit haka, powerfully acknowledging the lives and feats of their fallen comrades as they come onto the Unit's parade ground. It is also an emotive farewell for they will leave via the waharoa (the carved entrance way) for the very last time.
The silence after the haka is pretty intense.