The military machine is ready to change its defensive posture to one prepared for action.

军事当局已准备从防御态势变为备战态势。

《柯林斯英汉双解大词典》

The American military machine is under intense strain.

美国的军事系统面临着巨大的压力。

youdao

The biggest hurdle: moving the massive military machine across the desert.

目前最大的障碍是：如何把笨重的军事装备运送过沙漠。

youdao

He taught himself to be a pilot. During World War II, he designed a machine used to train military aircraft crews to fire guns at enemy aircraft.

VOA: special.2009.01.14

The military has also said machine guns and grenades were found near the site.

VOA: standard.2010.04.06

Authorities say they quickly killed two of the gunmen, but two others continued to fire machine guns in the extended battle in Pul-i-Alam, Witnesses say U.S.military helicopters were part of the response force, and one aircraft fired a rocket into a multi-story building which the insurgents had seized, used to launch their attack and had rigged with explosives.

VOA: standard.2009.08.10

Perhaps we are confused by the morality of war or the inner workings of the military machine.

FORBES: Bridging Military and Civilian Understanding: What Petraeus Taught Us

The ease with which America toppled the Taliban in Afghanistan promised a cakewalk in Iraq, which the American military machine duly delivered.

ECONOMIST: 20th-century America

Mitsubishi's hand-in-glove relations with Tokyo continued through WWII, when it cranked out Zero fighters, battleships and Kirin beer to keep Japan's military machine going.

FORBES: Setting sun