Recent drone incursions along NATO's eastern flank have reinforced the Baltic states' push to strengthen their air defences.
But defence experts say a shortage of equipment and specialised personnel across Europe could slow efforts to close critical gaps in drone detection and response.
"The industrial capacity is the main constraining factor," Tomas Jermalavičius, head of studies at Estonia's International Centre for Defence and Security (ICDS), told Euronews Next.
As countries across Europe invest heavily in air and missile defence, they are competing for the same radar systems, electronic warfare capabilities and counter-drone technologies from a small handful of providers, experts said.
The result is growing procurement backlogs, rising costs and delivery times that can stretch for years, Jermalavičius said.
