Cities across the US are preparing for major protests against President Donald Trump coinciding with his birthday and a military parade in Washington. Organisers expect millions to participate in protests across all states, with a significant rally in Philadelphia. Recent demonstrations have escalated due to federal immigration enforcement, leading to clashes with police. Governors are mobilising National Guard troops to manage the protests, with calls for peaceful demonstrations. The protests aim to reject authoritarianism and militarisation of democracy, countering the military parade celebrating the army's 250th anniversary.