ACAB is a slogan used around the world against the police
Jim Watson, of Friends of Dennistoun War Memorial, said: “I’m lost for words yet again.
“It’s another despicable act by those who don’t know any better.
“I honestly don’t know what people hope to get out of this, it seems an absolutely pointless act yet a disgusting act.”
Last year the group petitioned to have a specific law against desecrating war memorials, similar to one that is being introduced by the Westminster parliament.
Mr Watson added: “This is why we had the campaign last year for laws to protect war memorials.