In a military or martial manner; not peaceably.(adverb)
By way of military or otherwise belligerent means.(adverb)
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Use "militarily" in a sentence
"There is no point in militarily defending a nation that is built on ideas when the ideals are dead."
"An article in The Guardian on September 26, 2001 also adds evidence that there were already signs in the first half of 2001 that Washington was moving to threaten Afghanistan militarily from the north, via Tajikistan and Uzbekistan."
"But if it means that we ignore the existing process and barge in militarily, then it could easily turn out to be a disaster."