Germany is financing the delivery of 50,000 attack drones for Ukraine, a person familiar with the deal told Reuters. The first-person view unmanned aerial vehicles (FPV drones) were ordered from major Ukrainian manufacturer SkyFall. They are equipped with software from the American company Auterion, designed for autonomous tracking and striking of moving targets during the final stage of flight.

This is one of the largest known drone procurements for Ukraine by a Western government, Reuters notes. Auterion CEO Lorenz Meier told the agency that the contract is worth about €90 million ($103 million) and is being financed by a European country. According to Meier, some of the drones have already been delivered, and the rest are due to reach the troops later this year.

Financing arms purchases from Ukrainian manufacturers has become one form of aid that Western governments are providing to the country fighting Russian aggression. European companies are not always able to quickly produce and deliver the weapons Ukraine needs. Meanwhile, officials in Kyiv say domestic manufacturers are capable of significantly increasing output — if only there were money to buy military products from them.

Denmark became a pioneer of this type of support. According to Meier, this year Auterion, in partnership with various manufacturers and with financial backing from several Western countries, will equip a total of 100,000 drones received by Ukraine with its software. This includes a Pentagon contract to supply 33,000 drones for $50 million, which, he said, have already been delivered to the Ukrainian armed forces.

In June, Britain said it would provide Ukraine with 150,000 drones this year as part of a broader aid package worth about $1 billion.

SkyFall confirmed Germany’s participation in the deal to Reuters, but said it could not comment on the details of the procurement.

Kyiv is rushing to put maximum pressure on Russia through its drone strike campaign before Russia manages to copy Ukrainian technology and begins using it for retaliatory bombardments, two Ukrainian officials told Politico. They also said the Ukrainian armed forces are seeking to inflict as much damage as possible before winter, when Russia traditionally begins a campaign of massive strikes on Ukrainian cities aimed at destroying their energy systems and depriving residents of electricity, heat, and water supply.