Her musical career was cut short when the [Fascists] invaded the Netherlands.
Belinfante’s position as a famous musician gave her some protection, and she chose not to escape to a safe harbor. Instead, she decided to join the Dutch resistance.
She joined Willem Arondeus, who himself was an out and proud gay person. They focused on forging documents to smuggle Jews out of the Netherlands.
Sadly, Arondeus didn’t survive the war, but after his death he was declared a Righteous Gentile by Yad VaShem.
The [Axis’s] suspicion was aroused in 1943, and the noose began to tighten around the unit member’s necks.
Frieda came up with a genius plan to prevent the [Axis] from discovering which documents were forged: blowing up the [Axis] population registry office in Amsterdam.
She planned the mission, but as a woman she wasn’t allowed to join the executive squad.
The operation was declared a partial success and the explosion led to the destruction of 800,000 Jewish IDs (15% of those kept there).