How have European nations contributed to Ukraine compared to the US, and what is Trump demanding?

European nations have contributed over 130 billion euros to Ukraine's war effort over the past three years, outspending the US in almost every aid category except military spending. Despite their significant contributions, European leaders are frustrated about being left out of discussions regarding Ukraine aid. Former President Trump has called for European countries to increase their defense spending to 5% of GDP, a substantial increase from their current average of around 2% - and a level that even the US does not currently meet. European nations have been increasing their military budgets in response to the Ukraine-Russia war, but remain far from Trump's demanded target.