The Invite/brochure of the Ground Forces Festival/Gyeryong Military Culture Festival on 10/2~6  featuring Yunho, Lee Seung-gi and the enlisted super juniors was found at the 2016 Korean International Tourism Show in Ilsan KINTEX (runs during 8/18~21, at Hall7)

[cr: inusuki_hana: here ]

More photos of the booth, you can see the brochures on display:

[cr: 계룡군문화축제 via @UltraTVXQ]

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Credits:

inusuki_hana: here and 계룡군문화축제 via @UltraTVXQ,
In English via @snxy: 1 and 2,
Posted and Shared by TVXQ! Express