More than 700 families of fallen military heroes gathered at Walt Disney World on Tuesday. Loved ones were hosted by the Gary Sinise Foundation for the annual Snowball Express Healing Retreat.

ET is taking a look at all of the celebs who joined Gary Sinise for his annual event held for the children of fallen military soldiers. ET spoke with hosts Gary Sinise and Joe Mantegna about the ...

Gary Sinise's son ... who has lost a loved one," Sinise wrote. "We've all experienced it in some way. Over the years I have met so many families of our fallen heroes. It's heartbreaking, and ...

7, the Gary Sinise foundation ... from the Gary Sinise Foundation provided to Fox News. “Each December, we host a five-day experience for 1,750+ children of the fallen and their surviving ...