Ukraine to launch a large-scale offensive in Donbas during the World Cup to provoke a humanitarian disaster and an exodus of the population. The goal is to create a situation that by autumn will allow Ukraine to push through the idea of bringing in an international contingent by branding Russia a party to the conflict and an aggressor.
Conspiracy theory. No evidence of any war preparations.
Recurring pro-Kremlin disinformation on Ukrainian aggression against Russia and on World Cup. https://euvsdisinfo.eu/disinformation-cases/?text=&disinfo_issue=&disinfo_keywords%5B%5D=77110&date= https://euvsdisinfo.eu/disinformation-cases/?text=world+cup&disinfo_issue=&date=
More on the fighting in Eastern Ukraine: https://www.rferl.org/a/29241384.html
The Office of the Prosecutor of the International Criminal Court has stated that “the information available suggests that the situation within the territory of Crimea and Sevastopol amounts to an international armed conflict between Ukraine and the Russian Federation. This international armed conflict began at the latest on 26 February when the Russian Federation deployed members of its armed forces to gain control over parts of the Ukrainian territory without the consent of the Ukrainian Government https://www.icc-cpi.int/iccdocs/otp/161114-otp-rep-PE_ENG.pdf
For further debunking see https://euvsdisinfo.eu/report/the-osce-the-pentagon-nato-headquarters-and-the-council-of-europe-do-not-recognize-the-facts-of-russias-aggression-against-ukraine-primarily-the-intrusion-of-russian-tanks-and-paratroopers-into-do/