A shake-up of the Territorial Army will see the Sheffield-based Royal Signals regiment disbanded and the loss of the city’s only infantry unit.
The plans, announced by Defence Secretary Philip Hammond, have been greeted with dismay.
The change will see Sheffield without a reserve infantry unit for the first time since 1859.
No bases in Sheffield or South Yorkshire will close, but 38 Signals Regiment, which has its headquarters at Manor Top, will be merged with a regiment based in Worcestershire.
Heeley MP Meg Munn, whose constituency includes Manor Top, said: “When the Government seeks to recruit more reservists, taking a significant regimental headquarters away from Sheffield, one of the country’s largest cities, it cannot be right.”
Meanwhile, the infantry company of Fourth Battalion The Yorkshire Regiment based at Endcliffe Hall will be moved to share a base in Barnsley.
Retired Col Geoffrey Norton, president of Hallamshire Battalion Association York and Lancaster Regiment, said: “Sheffield is a major city and it is extraordinary there will be no infantry unit.”
The Army has not revealed progress on plans to sell Manor Top TA centre to Tesco, with new barracks to be built at Hillsborough.