Christine Morgan, who served in the Auxiliary Territorial Service during the second world war, received a visit from army officials on Saturday, December 11, as she celebrated her landmark birthday at Hunters Court, Streetly.
Members of the HQ 11 Signal and West Midlands Brigade brought her a cake, one of three she received on the day.
And she said: "I had a fantastic party and I have some lovely photographs to cherish.
"It was a lovely surprise to see the army. I feel very lucky."
Christine said she feels fortunate to still be able to do many things she enjoys.
"I still walk about here and I can do most things. I go on the internet and I go on my iPad, I love that.
"I do all sorts of quizzes and I'm addicted to Sudoku. All in all, I feel very, very lucky."
Kirn Varma, relief development manager, who visits Christine at Hunters Court, said: "Chris is a remarkable woman, who lives independently.
"She walks around, does all her own cooking, orders online and everything."
Businesses including Sheldon Carpets, Wroxall Roofing, Tesco Express Streetly and Breakfast Express Streetly all helped support the birthday celebrations.