The phrase "a virtual army of" is correct and usable in written English.
It can be used to describe a large, organized group of people or entities that operate in a digital or online context, often implying strength or influence.
Example: "The campaign was supported by a virtual army of social media influencers who helped spread the message far and wide."
Alternatives: "a digital legion of" or "an online battalion of".
To do that, it will need to recruit a virtual army of new employees.
But the Hurricanes came with a virtual army of quality quarterback depth.
It is like having a virtual army of college D.J.'s arrayed before you, ready to indulge your musical tastes.
But there's a virtual army of them out there, waiting to take over your screens, your homes, your lives.
A virtual army of publicists, media specialists and others stands ready every day to infiltrate the news with stories that help their employers.
These temporary monuments of architecture, sculpture, and painting required a virtual army of carpenters, sculptors, and painters all working under Rubens as impresario.
This week the European Union outdid even the futuristic Americans, announcing the creation of a virtual army, which exists mainly in the minds of enthusiastic politicians.After the Kosovo conflict had yet again illustrated Europe's military reliance on America, the EU set itself a goal: to be able to deploy, by 2003, up to 60,000 troops, within 60 days, and sustain them in action for up to a year.
The mystery, of course, is why Germany, when the obvious choice was to head west and disappear, as far as he could get from the virtual army of old Nazis and new Stasi eager to silence the good cop with a memory as long and fresh as their crimes.
All of the above might seem indistinguishable from Hillary Clinton, or the virtual army of Republican contenders who have either formally announced their candidacies, or are about to do so.
On a large monitor outside the data center, it appears as if the researchers have turned loose a frenetic army of virtual Charlie Sheens on the city of Livermore, Calif.
These days, you can assemble an army of virtual team mates without spending a dime on office space, thanks to virtual hiring companies like Upwork, Elance, 99designs and a host of others.
