Pentagon's science chief describes future of warfare with 3D-printed projectiles from coconut husks and coffee grounds

The Pentagon's SciTech supremo discusses how the Ukraine war has changed understanding of AI and biotechnology in conflict. Future warfare may involve 3D-printed ammunition made from sustainable materials like coconut husks and coffee grounds.

• 'The thing that's amazing to me is this was 3D-printed': Pentagon's SciTech supremo describes future of warfare where projectiles are made up of coconut husks and coffee grounds