In an apparent climate protest, police arrested a woman after what appeared to be feces and urine were thrown over a memorial to Captain Sir Tom Moore.
On Friday, it happened on Thistley Meadow in Hatton, Derbyshire.
The Metropolitan Police said a woman was detained in central London on suspicion of criminal damage.
The memorial has been vandalized before; graffiti was sprayed on it in December 2021.
The Met did not reveal the woman’s age or whether she had been remanded in custody.
During the Covid-19 pandemic, Captain Sir Tom became a household name when he set out to complete laps around his garden in order to raise money for the NHS.
By the time he turned 100, he had raised nearly £33 million.
In February 2021, the Army veteran died.