India, April 4 -- The White House is set to release President Donald Trump's 2027 budget on Friday, a sweeping blueprint that could boost Pentagon spending to $1.5 trillion, the largest of its kind in decades, as the US focuses on military investments rather than other domestic programs.

Even before the US-led war against Iran, the Republican president had indicated he wanted to bolster defense spending to modernise the military for 21st-century threats. Separately, the Pentagon last month proposed $200 billion for the war effort and to backfill munitions and supplies. Trump, speaking ahead of an address to the nation this week about the Iran war, signaled the military is his priority, setting up a clash ahead in Congress.

"We're fighti...