A campaign to save West Mercia Police has been launched in the House of Commons.
MPs have attacked proposals to merge the force, in an official Commons motion.
West Mercia Police was named the best in the country in a Home Office assessment last month. But it is under threat because of a Government ruling forces with fewer than 4,000 officers lack the resources needed to deal with threats such as terrorism and organised crime.
Chief constables have to come up with merger proposals, to create fewer, larger forces.
West Midlands Police has urged the Home Secretary to create a new regional police service by merging four existing forces.
It said a regional force, serving five million people, was the "strongest option" of the possible reforms.
Staffordshire, Warwickshire and West Mercia Police have also included the creation of a new regional force as an option to be considered.
But West Merica said an alternative approach would be to allow it to remain as it is - with extra resources to ensure it could deal with problems such as organised crime. The motion said: "This House recognises the excellent performance of West Mercia Constabulary [and] expresses concern at the Government's plans to abolish the force."
It was signed by MPs including Mark Pritchard (Con The Wrekin), Philip Dunne (Con Ludlow), Bill Wiggin (Con Leominster), Peter Luff ( Con Mid Worcestershire), Daniel Kawczynski (Con Shrewsbury & Atcham), Owen Paterson ( Con North Shropshire), Sir Nicholas Winterton (Con Macclesfield) and Mark Harper (Con Forest of Dean).
Officially, however, the Government has not announced plans and is considering submissions from Chief Constables.