The image in this post was taken from an EH101 “Merlin” of the Portuguese Air Force during exercise Hot Blade 2013.
Two EH101 (AW.101) helicopters of the 751 Squadron “Pumas”, based in Air Force Base No.6, Montijo, south of Lisbon, and several other helicopters as well as dozens of military took part in the exercise while ensuring the SAR (Search And Rescue) service alongside the units based at Porto Santo and Azores.
In the famous Vietnam movie Apocalypse Now, there's a similar formation of helicopters on their way to assault, flying in to the song "Ride of the Valkyries."
Here a snapshot of the scene below, the similarities are striking:
