'large detachment' is a correct and usable phrase in written English.
You can use it when referring to a large group or number of people or objects. Example sentence: The army sent a large detachment of troops to the site of the insurgency.
A large detachment of dental students from the school of dentistry; they mixed their porcelain inlays andneatly filled all the cavaties.
That person, the 10th Panchen Lama, eventually became a fierce and courageous critic of Chinese actions in Tibet, but when he first arrived in Tibet in 1951, he was accompanied by a large detachment of Chinese troops.
As we entered an Arab village called Qayyil, 15km west of Tal Abyad, we were stopped by a large detachment of YPG troops who said they were conducting a search.
Burgoyne recognized that the American position could be flanked, and divided his forces, sending a large detachment to the west on September 19.
There were fears that the German forces might refuse to surrender and instead resist the Allied occupation forces, and there were particular concerns about what the large detachment of Kriegsmarine personnel at the port of Trondheim might do.
The Danube frontier, already weakened by the dispatch of large detachments to the East, collapsed under barbarian assault.
After several minutes those protesters moved onto sidewalks, and large detachments of officers equipped with plastic shields and a few rifles with orange stocks labeled "less lethal" arrived and stood in ranks.
The first flag that is used is for large detachments.
Soon after that, when two British officers were killed leading an attack by the larger detachment on the German gun battery, Captain Porteous took their place, dashing across 250 yards of open ground in the face of machine-gun fire at the head of a bayonet assault.
We have noticed that these anions possess extremely large vertical detachment energies, exceeding to the electron affinity of Cl, and therefore, they belong to a special class namely, superhalogen.
Fundus examination in the right eye (Figure 1a) revealed clear media with slight disc pallor with area of vasculitis superior to disc associated with multiple whitish fluffy areas of deep retinitis (4 to 5 disc diameter) and a large neurosensory detachment in the macular area.
