3 adverbs to describe how to belligerent

Toward the close of November Great Britain's declaration with a retroactive effect put the contest upon a distinctly belligerent basis and accepted the date of the Transvaal's ultimatum, 5 p.m., October 11, 1899, as the commencement of the war.

"Seeing that it's Esther's china on her own mother's side, I guess she can use it if she likes," said Aunt Amy, mildly belligerent.

And both these males with whom she had flirted unconscionably for weeks past were ominously belligerent of manner and countenance.

3 adverbs to describe how to  belligerent  - Adverbs for  belligerent