US Secretary of State Marco Rubio has stated that Ukraine and Europe will be part of any 'real negotiations' to end Moscow's war, indicating that talks between the US and Russia this week will determine Putin's seriousness about peace. Rubio played down European concerns of being excluded from the initial talks, stating that if negotiations progress, Ukrainians and other Europeans will be included. The planned talks in Saudi Arabia coincide with a US bid to open up Ukraine's natural resources to US investment. European leaders will hold an emergency summit on the Ukraine war on Monday.