The F - FDTL 's strength fell from 1,435 in January 2006 to 715 in September .
The proportion of westerners in the military fell from 65 percent to 28 percent .
The F - FDTL 's strength fell from 1,435 in January 2006 to 715 in September and the proportion of westerners in the military fell from 65 percent to 28 percent .