India, Dec. 31 -- Donald Trump's return to the White House in 2025 was marked by policy shifts and an assertive use of executive power. From the first days of his second term, the president moved to undo Biden-era policies while advancing long-promised goals on immigration, trade and social issues.

Several of Trump's decisions this year triggered immediate legal challenges or market reactions, while others reshaped US engagement abroad.

Here is a timeline of 10 landmark decisions taken by Donald Trump in 2025, spanning domestic policy, national security, trade and foreign affairs.

Within days of taking office, Trump reinstated the Mexico City policy, cutting off US funding to overseas organisations that provide abortion services, couns...