Tobyhanna Army Depotā??s annual holiday charity drive, Operation Santa Claus, will host hundreds of guests at three parties today, Wednesday and Thursday in the depotā??s Mack Field House. Festivities for each party get underway at 10:30 a.m. and feature musical entertainment and a visit with Santa and Mrs. Claus. Children and other area residents served by more than 20 regional agencies will take part in activities. Attendees also enjoy lunch and receive a gift before departing the depot. In existence since the mid-1950s, Operation Santa Claus distributes a variety of items, from toys and electronics to food and personal care items, to brighten the holiday season for residents and clients of many regional agencies. The drive is supported by fundraising events at the depot and contributions from regional businesses.