The phrase "huge manpower" is correct and can be used in written English.
It is often used in business or work-related contexts to refer to the amount of personnel needed. For example, "It took a huge manpower to complete the project on time."
"The only way to tackle this is with huge manpower on the ground, supported by intensive and sustained aerial water-bombing.
Mr. Corzine will thus enjoy a preferred spot on primary ballots in those areas and a huge manpower advantage in the crucial area of get-out-the-vote efforts.
Assad, as explained in this blog, has huge manpower problems, in fact only one, and what a problem-he lacks enough Alawites to conduct the war, as Alawite militias are also mobilized to defend their home ground in Northwest Syria.
"There is a huge trained manpower that they will not know what to do with and this will unleash acts of terror and we are a good target," the officer said.
Whereas in the past, the battle against pirate fishing has been fought predominantly on the waves, requiring huge resources, manpower, and time to track mostly elusive pirate fishers, this new rule turns ports into the first line of defence.
The militia exploited a huge advantage in manpower and heavy artillery.
Considering the huge volume of manpower and economic value of goods in these centers, this domain will assume higher importance.
"You can't stay at such a high level of alert indefinitely without creating huge financial and manpower problems," a law enforcement official said.
For most theatres and companies, without the huge budgets and manpower that there is behind a show such as Mormon, steamroller campaigns are something they can only dream about.
But, given the huge investment of manpower, money, and prestige that the United States has invested in the country over the past decade, it would be a brave or foolhardy President who'd simply step aside and watch the fighters of the Islamic State of Iraq and al-Sham overrun Baghdad.
He says police put a huge amount of manpower into investigating paedophile networks - which often "lie very low, deep in networks" - until there is conclusive evidence, and vigilante groups run the risk of providing evidence that isn't admissible in court.
