In this photo taken June 11, 2011, therapist Kate Dillingham, right, works with 10-year-old Ariana, left, and her cousin Destyni, 12, during a therapy session in Chicago. Launched in 2009, Operation Oak Tree is a program that offers arts-focused therapy to help military families deal with the emotional stages of deployment. Ariana's father and Destyni's uncle is preparing for overseas deployment. (Barbara Rodriguez / Associated Press)
In this photo taken June 11, 2011, therapist Kate Dillingham, right, talks with 10-year-old Ariana, during a therapy session in Chicago. Launched in 2009, Operation Oak Tree is a program that offers arts-focused therapy to help military families deal with the emotional stages of deployment. Ariana's father is preparing for overseas deployment. The program encourages kids to express their feelings about having mom, dad, or other family deploy. (Barbara Rodriguez / Associated Press)
In this photo taken June 11, 2011, Jenni Rook, right, acting clinical director at the Institute for Therapy through the Arts, a division of the Music Institute of Chicago, works with Jaden, 5, during a therapy session in Chicago. Launched in 2009, Operation Oak Tree is a program that offers arts-focused therapy to help military families deal with the emotional stages of deployment. The program encourages kids to express their feelings about having mom, dad, or other family deploy. (Barbara Rodriguez / Associated Press)
In this photo taken June 11, 2011, Duane Stuckman, a Marine based at the Great Lakes Naval Station, works on a puppet show with Jacob, 6, during an exercise session at Operation Oak Tree in Chicago. The program helps military families deal with the emotional stages of deployment. Now in its second year, the arts-focused therapy program encourages kids to express their feelings about having mom, dad, or other family deploy. (Barbara Rodriguez / Associated Press)
In this photo taken June 11, 2011, therapist Kate Dillingham, left, talks with children as Duane Stuckman, a Marine based at the Great Lakes Naval Station, uses a puppet during a role-playing exercise in Chicago. The exercise is part of Operation Oak Tree, a program that offers arts-focused therapy to help military families deal with the emotional stages of deployment. Launched in 2009, the program encourages kids to express their feelings about having mom, dad, or other family deploy. (Barbara Rodriguez / Associated Press)
Launched in 2009, Operation Oak Tree is a program that offers arts-focused therapy to help military families deal with the emotional stages of deployment.