“以军事行动”可以翻译为 “by military means” 或 “through military action” 。
“by military means” 侧重于表达借助军事手段这种方式，强调手段属性。例如：The conflict was resolved by military means.（这场冲突是通过军事手段解决的。）
“through military action” 更强调军事行动这一行为过程。例如：They aimed to achieve their goal through military action.（他们打算通过军事行动来实现目标 。 ）