What are the legal implications, and why does Belgium fear being left alone with the bill?

Latest EU sanctions against Russia target liquified natural gas

With Donald Trump ruling out further US military aid, and as Russia’s deadly attacks grind on, European leaders are looking for a new way to finance the defence of Ukraine.

Now they think they have an answer: using billions of Russian state assets frozen in the west.

EU leaders are expected to approve the idea at a summit in Brussels on Thursday, although many important details would have to be agreed later if the plan is to become a reality.