More than 600 jobs are to be lost with the closure of a Ministry of Defence repair shop in the Midlands used to maintain Challenger tanks.
The base at Donnington, Shropshire, is to be closed with the loss of 628 jobs, Defence Minister Adam Ingram revealed yesterday.
Mark Pritchard MP (Con The Wrekin) described the news as a slap in the face.
It follows the announcement earlier this year that 280 jobs were to go at RAF Stafford following a decision to end storage and distribution operations at the base.
The Donnington facility is used to repair and maintain vehicles including Challenger II tanks and Warrior armoured vehicles, as well as radios and other equipment.
It is part of the Army Base Repair Organisation (ABRO).
But it will close by March, 2007, as part of a streamlining of the armed forces logistical services, Mr Ingram revealed.
He said ABRO needed to change because it had become more efficient, reducing the number of staff needed.
The MoD was also changing the way it bought equipment, he said.
Suppliers were increasingly expected to provide maintenance services themselves, so there was less need for the armed forces to run its own repair shops.
Speaking in the Commons, he said: "Every penny we refuse to release by not implementing our modernisation programme is a penny less that is needed to provide our forces with the lifesaving support they need."
He later added: "We will help to find those involved alternative employment and we will make every effort to use natural turnover and voluntary redundancy.
"However, a significant number of compulsory redundancies can be expected."
The closure is part of a package of measures which includes closing ABRO facilities in Wiltshire and Essex, and losing 210 jobs at the head office in Hampshire.
Another 500 people are set to lose their jobs in South Wales due to cuts at the Defence Aviation Repair Agency.
Mr Pritchard said: "This is a huge blow to my constituents, and 628 families have been told their lives will be turned upside down."
David Wright (Lab Telford), some of whose constituents work at Donnington, described the decision as "plain wrong".