The claim that EU and NATO officials fear armies cannot conduct major operations without secure fossil fuel supplies is suggested by general discussions in the search results regarding European security and energy, but no single source explicitly combines the 'fear' of the officials with the specific 'inability to conduct major military operations' due to fuel shortages. The evidence points to general strategic concerns about energy and military readiness, but not this specific, unified fear statement.

The evidence confirms that Pekka Toveri is a Finnish MEP and former general, and that he has made speeches in the European Parliament. However, none of the provided evidence snippets contain the specific quote, 'Leopard tanks do not run on electricity,' making the claim unverified by the evidence provided.

The warning that 'In the unlikely scenario of a full-scale NATO operation, the air domain would account for around 80% of fuel demand' is cited in multiple web search results, but the evidence does not provide enough context or corroboration from distinct, authoritative sources to elevate it beyond a single source reporting the statement.