U.S. President Donald Trump is set to unveil a $1.5 trillion defense budget request for the next fiscal year on Friday, by far the largest year-over-year increase in defense spending in the post-World War Two era.Funding for Trump’s marquee but controversial $185 billion “Golden Dome” missile defense shield is expected to be included in the budget request as well as Lockheed Martin F-35 jets and warships.Procurement of Virginia-class submarines made by General Dynamics and Huntington Ingalls Industries as well as other top shipbuilding priorities is expected.Last year, Trump asked Congress for a national defense budget of $892.6 billion then added $150 billion through a supplemental budget request, sending the total price tag over $1 trillion for the first time in history.While the budget request framework for the fiscal year ending September 30, 2027 is set to be unveiled on Friday, a Pentagon official said more details on the defense budget will be announced on April 21.Earlier this year the administration was contemplating whether the $1.5 trillion budget request could be in the form of a $900 billion national security budget, with a $400 billion to $600 billion additional request, similar to the structure used in 2026.The administration plans to use funds for more weapons production in the hopes of deterring Chinese aggression in the Indo-Pacific region and to rebuild weapons stocks depleted by conflicts in Israel, Iran and Ukraine.The budget request will be debated in Congress in the coming weeks and months.