By Andrew Gray and Jacob Gronholt-Pedersen

COPENHAGEN (Reuters) -European Union leaders will discuss proposals for a “drone wall” to protect the continent at a summit on Wednesday in Copenhagen, just days after airspace intrusions by unidentified unmanned aircraft forced a temporary closure of Danish airports.

The summit will also be the first opportunity for leaders of the EU’s 27 countries to debate a proposal to use Russian assets frozen in Europe to fund a loan of 140 billion euros ($164.37 billion) to Ukraine.

France, Germany, Sweden, Norway, the Netherlands, Britain, Finland and Ukraine have committed troops and anti-drone systems to help Denmark protect the leaders, many of whom have accused Russia of brazen violations of European airspace with recent incursions by drones over Po

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