I've had this AMV on an old PC that I can't seem to find anywhere.
If it is of any help, the AMV was with a song in russian that starts with a violin, the whole thing was about war, destruction and the like. I am sure there was more than one anime in the AMV but there was a scene that stood out. Also this anime has to be from at least 2006-2007 because that's around when I saw it.
What I recall:
Quadruple laser cannons firing of some coast
Several fighter aircraft/drones being launched from underwater (in a vertical launch system fashion)
Same aircraft flew straight up and changed movement at a steep angle and started attacking something in the water.
Then, out of the place that was attacked, water started raising up outward from the center to form these huge water blades that would cut those airplanes clean in half.
All the google searches in the world couldn't help me find this.