It may be that you or he has miss heard and it was not Bombs but Bonds. This would seem more likely as prior to the US entering the war there was not a lot of overt war material help from the US as many politicians had written us off. Kennedy is one that springs to mind.
I do realise that this is NZ but you should get the meaning.
http://www.pukeariki.com/en/stories/leadingwomen/gayton.asp
Bonds for Britain
“Invariably, I would come off one those shifts and be told I was on parade: ‘Get yourself to Auckland Domain’.”
The “Bonds For Britain” marches were held to raise awareness and money for England, which was being hammered by Germany.
“There was a greater tie to Britain (than now) and they called for help.”
Lorna says that being on parade meant donning a dress uniform and marching from the domain, along Karangahape Road and down Queen Street to Customs Street, where the troops dispersed.
Bonds For Britain: WAAFs on parade at Blenheim in 1942. Lorna remembers taking part in parades to aid the war effort in Britain.
“I think they were very worthwhile, very impressive. People were very patriotic in those days too,” she says.
However, if the public had looked closely they would’ve seen women marching out of sync. The problem was the bands.
At the front was a brass band and at the rear were the bagpipe players. Lorna says the music didn’t match - and neither did the rhythm of the troops. “It was impossible to keep in step!”