Are military\militant people mostly republican....

I don't know what is mostly republican. Do you use mostly as in 90% military people are republican?

No. Military people just like people of other groups are diverse. They might lean more toward republican but they are not monolithic group. In a survey of who they would want as president this was how they indicated they would vote.

Trump vs Sanders
51% Trump, 38% Sanders (who is extreme left), 11 % no vote.

so you had 38% military people who wanted to vote leftist candidate/democrat party. 11% didn't want to vote. Only 1 out of 2 wanted to vote for republican.