By Pavel Polityuk KYIV, Dec 6 (Reuters) - A railway hub near Kyiv was attacked during a large-scale Russian drone and missile attack that damaged the depot and railway carriages, Ukrainian state railway company Ukrzaliznytsia said on Saturday.

Ukrainian President Volodymyr Zelensky had arrived ahead of schedule in Dublin.

Secretary of War Pete Hegseth has directed the Pentagon to embark on the largest unmanned systems buildup in U.S. history — an effort that could deliver more than 300,000 small drones over the next several years.

DUBLIN, Dec 4 (Reuters) - An Irish navy ship spotted up to five drones operating near the flight path of Ukrainian President Volodymyr Zelenskiy's aircraft as he arrived for a state visit to Ireland on Monday,

The drones resemble Iranian-designed Shaheds, which Russia has used in devastating strikes on Ukraine throughout the war.

The new drone is based on reverse-engineering Iran's Shahed drone.

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Small drones controlled by fiber-optic cables have turned parts of the battlefield into webs, a Ukrainian special operator told Business Insider.

While other European countries have chosen to politicize suspicious flyovers of strategic infrastructure, France has remained cautious about attributing responsibility for these intrusions.

The president of Synergy is Vadim Lobov, a Kremlin insider whose headquarters on the outskirts of Moscow reportedly features a wall-sized portrait of Russian President Vladimir Putin in the pop-art style of Andy Warhol. For a number of years, Lobov and Perkon co-produced a cross-cultural event in the U.K. called Russian Film Week.

Cal Fire San Benito-Monterey has the largest unmanned aircraft systems program of its kind in the state, in both number of pilots and flight hours.