Good luck with your sale.
Only if you want an agent to help you sell it. VA provide benefits for veterans through their loans. There are no special programs from the government that supplement an agents work on behalf of veterans. Some agents are inclined to provide added service or reduced fee schedules for Vets. Just make sure that you don't accept a lower set of fees that result in a lower set of standards.
Find the best agent you can and they will make you more money than an agent who only sells price. Thanks for your service and I hope your sale goes well.