Rough excerpt trans of the naver article:

SM: (Yunho) is scheduled to enlist in active duty this year but there are no fixed details about the time.
Sankei Sports’ on Korean men’s military service, disclosed that U-Know Yunho and Choikang Changmin are rumoured to enlist soon. Sankei Sports focused attention on: especially U-Know Yunho whose time for military service is impending.

SM: “the military warrant has not come out yet” but “due to his age, he will have to go this year, as mentioned at the Japan tour.” SM: The Japan tour will be the last before the time he enlists”
t/n: the tours referred to here are the Tohoshinki-only ones

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Credits:

Star News 스타뉴스 via Naver,
Translated by @snxy
Shared by TVXQ! Express