This founder left Silicon Valley to challenge U.S. defense supremacy from Athens, and investors are paying attention

In the summer of 2021, Dimitrious Kottas made a move that would be unfathomable to most Silicon Valley engineers: after leaving his coveted position at Apple’s Special Projects Group, he packed up his life in California and moved back to Athens to start a defense company.

Three and a half years later, his startup, Delian Alliance Industries, has set up solar-powered surveillance towers that monitor some of Greece’s borders around the clock and detect wildfires on remote islands, along with a pipeline of other products, including concealed sea…