The phrase "army acts" is correct and usable in written English.
It can be used to refer to actions or operations carried out by a military force.
Example: "The army acts swiftly in response to national emergencies to ensure public safety."
Alternatives: "military operations" or "armed forces actions".
The Israeli Army said in a statement, "The army acts effectively in self-defense against those who harm Israelis".
"The Mahdi Army acts as a tax office in all Shiite neighborhoods in Baghdad," he said.
ARMY ACTS TO BAR ALIENS.; Announces It Will Not Accept Men Who Evaded Immigration Law.
"When the reckless driver starts weaving, the army acts as the road barrier.
The fighting, which followed claims by a controversial Sunni cleric that the army acts in the interests of Hezbollah, has embroiled the Lebanese armed forces in controversy, which looked to be compounded Saturday by the circulation of a video purporting to show a Lebanese army unit detained by Free Syrian Army fighters in Syria.
"As long as the army acts with some restraint, and as long as the U.S. is careful not to back the incursion (or give the appearance of backing it), the blowback in the central regions would probably be quite limited," said Bronwyn E. Bruton, a democracy and governance expert who wrote a provocative essay published by the Council on Foreign Relations urging the West to withdraw from Somalia.
The states' forces were recognised by the Indian Government and the British Indian Army as allies, and their troops were subject to the Indian Army Act when serving alongside the Indian Army.
Does an army act differently when reporters are there?
The Russian army acted aggressively towards Ukraine, as Milošević's army did in Bosnia.
But few think that the army acted against the prime minister's wishes.
He said the army acted at the behest of millions of people.
