President Donald Trump has signed an order to impose tariffs on imports from Mexico, Canada, and China, sparking a trade war with the US's North American allies. The move has drawn swift retaliation from the affected countries and risks causing inflation to worsen. In a separate incident, a fiery crash of an air ambulance in Philadelphia has left seven dead and 19 injured. The cause of the crash is still unknown. Preliminary data from the deadliest US aviation accident in 25 years, which occurred near Reagan National Airport, show conflicting altitude readings between the airliner and Army helicopter involved. The US military has conducted airstrikes against Islamic State operatives in Somalia, the first such attacks in the country during Trump's second term. The strikes were coordinated with the Somali government and resulted in the deaths of multiple operatives. The website of the US Agency for International Development (USAID) has gone offline without explanation, as Trump's freeze on US-funded foreign aid and development continues. Congressional Democrats are concerned that Trump may be planning to eliminate USAID as an independent agency. Trump has fired the director of the Consumer Financial Protection Bureau, Rohit Chopra, in the latest purge of a Biden administration holdover. Chopra's tenure saw the removal of medical debt from credit reports and limits on overdraft penalties. The ceasefire in Gaza has seen the smoothest exchange yet of Israeli hostages for Palestinian prisoners. The crucial Rafah border crossing has reopened two days before discussions on the ceasefire's second phase are due to begin. Finally, the Army has released the name of the third soldier who died in the helicopter and airliner crash near Reagan National Airport. Cpt. Rebecca M. Lobach served as an Army aviation officer since July 2019.