The US election proved a catalyst for a grassroots movement of women to assert the positive values that the politics of fear denies. On January 21 2017, the first day of Donald Trump’s Presidency, women-led marches, welcoming all participants, took place across the world, with the largest in Washington D.C.. We, the organisers of the London march, called on people of all genders to march in London as part of an international day of action in solidarity.