Today's complex, fluid, and unpredictable operational environment both demands more from the military in terms of mission requirements and exposes troops to more stressors and potential trauma than ever before. On the one hand, situational awareness, mental agility, and adaptability are characteristics that the military wants to cultivate to succeed in such complex environments. In part, this complexity comes from the number and nature of the different missions the military must concurrently fill. The military needs to be able to mix offensive, defensive, and stability operations conducted along multiple lines of operations, without the benefit of a clearly demarcated "frontline." Many Soldiers liken this complexity and unpredictability to "the faucet," that is, needing to adjust to situations that could change from cold to hot instantaneously.