Fallen soldiers were honoured at a re-dedication ceremony for a war memorial saved after a two-year campaign.
Troops from Hounslow barracks marched with cadets and a brass band along Brentford High Street to the library, where the 80-year-old marble stone has been laid.
Reverend Derek Simpson led the service on Saturday, which was also attended by a crowd of more than 200 residents, Hounslow mayor Councillor Paul Lynch and standard bearers from the Royal British Legion.
Residents from Brentford Steering Group tirelessly raised funds to save the memorial stone, securing a £25,000 grant from Hounslow Council, after it emerged it could be destroyed by an overhanging tree if it was not moved from its old home at St Lawrence’s Church.
Coun Lynch said: "This memorial means an awful lot to many residents of Brentford. It is sad to think what they must have felt all these years to see their relatives' memorial neglected, as though the young men's sacrifice meant nothing.”
Julia Quilliam, of the steering group, who has campaigned to secure the future of the memorial, said she was thrilled.
“It was absolutely amazing, we were all so, so proud,” said Ms Quilliam, whose brother died while serving in Afghanistan three years ago.
“It was very patriotic, very emotional and there was a brilliant turn-out.
“It was amazing how many relatives there are around still who came forward.
“We were expecting rain but then the sun shone, it was lovely.”
The memorial has the names of 177 fallen soldiers, including Edgar Harold Holmes Turner - the son of Brentford librarian Fred Turner.
He was killed just after his 21st birthday in 1916, and his poignant photographs of the battlefield could soon be displayed in the Imperial War Museum.
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