The phrase "army activities" is correct and usable in written English.
It can be used to refer to various operations, exercises, or tasks conducted by military forces.
Example: "The report detailed the army activities conducted during the training exercise last month."
Alternatives: "military operations" or "armed forces activities".
Gen. Leslie R. Groves was placed in charge of all Army activities (chiefly engineering activities) relating to the project.
In the disciplinary proceeding, Mr. Waple said, Colonel Saleh was found guilty of improperly sharing information on his Army activities in one e-mail message.
Dlugosz, whose parents were divorced, had a passion for horses as well as the army, which she had first fallen in love with at an army activities week at her school when the family were living in Somerset.
Although Sadr explicitly denounced sectarian violence on May 25 , 2007and commanded a halt to Mahdi Army activities following Iraqi and U.S. raids on Iraq's Special Groups, he is believed to privately encourage anti-coalition operations via the PDB.
The army officer was later changed to a policeman because Sippy felt that it would be difficult to get permission to shoot scenes depicting army activities.
In a last-ditch effort to re-establish control and respect, Mr. Sadr issued an order halting all Mahdi Army activity in August.
The intensified army activity was thought to relate to a sweep through a nearby village, Khirbet al-Jouz, at the entrance to which tanks and jeeps could be seen massing late on Thursday night.
The revelations are likely to prompt serious questions for the current Sri Lankan government, which includes several senior members of the cabinet who oversaw army activity during the last days of the conflict.
Yugoslav army activity, on the other hand, ebbed and flowed roughly in sync with the refugee movements and killings.
Bangladesh is concerned about Myanmar army activity on the border and would lodge a complaint if Bangladeshi territory was violated, an interior ministry official said.
Residents had started to leave in advance of planned army activity in the city, where the government is trying to recapture areas grabbed up by the Islamists in July.
