Struggling with manpower shortages, overwhelming odds and uneven international assistance, Ukraine hopes to find a strategic edge against Russia in an abandoned warehouse or a factory basement.

An ecosystem of laboratories in hundreds of secret workshops is leveraging innovation to create a robot army that Ukraine hopes will kill Russian troops and save its own wounded soldiers and civilians.

Defense startups across Ukraine — about 250 according to industry estimates — are creating the killing machines at secret locations that typically look like rural car repair shops.

Employees at a startup run by entrepreneur Andrii Denysenko can put together an unmanned ground vehicle called the Odyssey in four days at a shed used by the company. Its most important feature is the price tag: $35,000, or roughly 10% of the cost of an imported model.