Foster worked for John Inglis Company Ltd. producing Bren light machine guns on a production line on Strachan Avenue in Toronto, Ontario.

[2] Her pictures were used to encourage Canadian women to participate in the war efforts and heavily depicted ties to third-wave feminist ideologies.

[3] The pictures of Foster and their impact on Canadian women also inspired the creation of the American cultural icon "Rosie, the Riveter" in the United States of America.

[5][6] She became popular after a series of propaganda posters were produced; most images featured her working for the war effort, but others depicted more casual settings like Foster dancing the jitterbug or attending a dinner party.

[7] After the war, she worked as a singer with Mart Kenney and His Western Gentlemen, where she met trombonist George Guerrette, whom she subsequently married.

[12][13][14] John Inglis Company Ltd. was a massive facility that covered 23 acres, with thousands of other women working alongside Veronica in the manufacturing of Bren light and reliable machine guns used by Canadian and British soldiers.

[12][14] Foster was chosen to be the poster girl for the NFB campaign that would later make her into a national icon, representing many more Canadian women who worked manufacturing jobs during the war.

The photographs depicted her going to dinner parties in lavish clothes, dancing the jitterbug at the Glen Eagle Country Club, and playing baseball.

[19] These images provided a sense of familiarity and collectivity among Canadian society, thus motivating women to join the war industry to show their continuous support for Canada.

The campaign turned her into a national icon, representing a glamourized and ideal patriotic image of Canadian women working in the munition manufacturing industries during the Second World War.

Foster's representation as "the Bren Gun Girl", wearing her iconic red headscarf and overalls, is often seen as embodying the perfect blend of femininity and female liberation, so much so that she presented the basis of inspiration for America's own propaganda image of "Rosie, the Riveter."

Today, many refer to Ronnie, the Bren Gun Girl in relation to third-wave feminist ideologies, with her representation seen as embodying women's choice to express their femininity, beauty, and sexuality as they please as a way to resist oppression and objectification.

[23][24] Approximately 261,000 women took part in the production of war goods, representing around 30 per cent of the aircraft industry, close to 50 percent of gun plant employees, and a majority in munition inspections.

Ronnie, the Bren Gun Girl, for example, is rarely mentioned in documentations of the war, with her role often being overshadowed by her American counterpart – Rosie, the Riveter.

[12] On May 8, 2020, which marked the 75th anniversary of the Victory in Europe (V-E) day, Foster's achievements were commemorated through Canada Posts' creation of stamps in her honour.

[8] Foster's and other Canadian women's stories of participation in the Second World War were referenced in the National Film Board of Canada documentary, Rosies of the North.

Her photos were available for viewing at the Robert McLaughlin Gallery in Oshawa from March to May 2016, in order to highlight her profound influence in the Second World War in inspiring women to join the workforce.

[16][22] In 2014, Canada's Broadcast Corporation (CBC) Radio produced a six part series on Love, Hate, and Propaganda that featured a segment on Veronica Foster and her contribution in the Second World War in the third episode, "Meet the Enemy.