DUBLIN — Neutral and poorly armed Ireland — long viewed as “Europe’s blind spot” — announced Thursday it will spend €1.7 billion on improved military equipment, capabilities and facilities to deter drones and potential Russian sabotage of undersea cables.

The five-year plan, published as Defense Minister Helen McEntee visited the Curragh army base near Dublin,  aims in part to reassure European allies that their leaders will be safe from attack when Ireland — a non-NATO member largely dependent on neighboring Britain for its security — hosts key EU summits in the second half of next year.

McEntee said Ireland intends to buy and deploy €19 million in counter-drone technology “as soon as possible, not least because of the upcoming European presidency.”

Ireland’s higher military spending — representing a 55 percent increase from previous commitments — comes barely a week after a visit by Ukrainian President Volodymyr Zelenskyy exposed Ireland’s inability to secure its own seas and skies.

Five unmarked drones buzzed an Irish naval vessel supposed to be guarding the flight path of Zelenskyy’s plane shortly after the Ukrainian leader touched down at Dublin Airport. The Irish ship didn’t fire at the drones, which eventually disappeared. Irish authorities have been unable to identify their source, but suspect that they were operated from an unidentified ship later spotted in European Space Agency satellite footage. The Russian embassy in Dublin denied any involvement.

Ireland’s navy has just eight ships, but sufficient crews to operate only two at a time, even though the country has vast territorial waters containing critical undersea infrastructure and pipelines that supply three-fourths of Ireland’s natural gas. The country has no fighter jets and no military-grade radar and sonar.

Some but not all of those critical gaps will be plugged by 2028, McEntee pledged.

She said Ireland would roll out military-grade radar starting next year, buy sonar systems for the navy, and acquire up to a dozen helicopters, including four already ordered from Airbus. The army would upgrade its Swiss-made fleet of 80 Piranha III armored vehicles and develop drone and anti-drone units. The air force’s fixed-wing aircraft will be replaced by 2030 — probably by what would be Ireland’s first wing of combat fighters.

Thursday’s announcement coincided with publication of an independent assessment of Ireland’s rising security vulnerabilities on land, sea and air.

The report, coauthored by the Dublin-based think tank IIEA and analysts at Deloitte, found that U.S. multinationals operating in Ireland were at risk of cyberattacks and espionage by Russian, Chinese and Indian intelligence agents operating in the country.