A soldier from Ukraine’s Taifun unmanned aerial vehicle unit holds a new model Marsianin attack drone on April 7 in Kharkiv region, Ukraine. | GETTY IMAGES / VIA BLOOMBERG

Tokyo-based Terra Drone is expanding its investment in Ukrainian interceptor drones as it looks to bring battlefield-tested technology back to Japan to tap into a multibillion-dollar defense budget for unmanned systems.

On Tuesday, Terra Drone CEO Toru Tokushige said the company was entering a new strategic partnership with Ukraine’s WinnyLab to develop fixed-wing interceptor drones. It comes after the company announced in March that it would make an investment in Ukraine’s Amazing Drones to develop vertical take-off interceptor drones.…