HELSINKI, May 19 (Reuters) - Finland will supply 90 million euros ($101.35 million) of ammunition to Ukraine by using proceeds from Russian financial assets frozen by the European Union after Moscow's full-scale invasion in 2022, the Finnish defence ministry said on Monday.The EU has estimated that 210 billion euros of the roughly $300 billion worth of frozen Russian assets are held in the 27-nation bloc, mainly in the form of government bonds that Russia's central bank had stored as reserves.HELSINKI, May 19 (Reuters) - Finland will supply 90 million euros ($101.35 million) of ammunition to Ukraine by using proceeds from...