During a pre-deployment briefing SSgt Rener says, I know you are leaving out next week and this is a first deployment for some of you. All of you will face new challenges and hardships. Use this training and support network you have so you can endure, bounce back, and develop in these hard times. When you return the unit needs you back one hundred percent. SSgt Reners comments BEST explain _____ and its impact on mission effectiveness.