Outgoing Chairman of the Joint Chiefs of Staff Martin Dempsey on Facebook: 'For my final post, I want to thank each of you ... your encouragement and support to my family and I as we addressed challenges around the globe was deeply appreciated and welcomed. And your jokes were pretty funny ... sometimes - so yes, I read the comments... I will end with making one final request ... stay engaged with our military on social media and keep communicating with your military's leadership.' - @Martin_Dempsey