Japan is planning to replace some of its attack helicopters with multipurpose drones, prompting warnings from some Chinese media outlets and analysts that this could be seen as a hostile move.The country’s defence budget, which took effect on April 7 for this financial year, allocates 11.1 billion yen (US$70 million) for the procurement of five wide-area unmanned aerial vehicles.Japanese media outlet J-Defence News said this was the first step towards implementing the Defence Build-Up Programme, which was approved in late 2022.Under the programme, the military will gradually retire its AH-1S Cobra anti-tank helicopters and AH-64D Apache attack helicopters, transferring their fire support and reconnaissance roles to multipurpose attack drones.The programme also calls for a dedicated multipurpose drone unit to be set up by 2032.