A Russian attack on NATO territory is "a realistic scenario," Berlin reportedly believes, despite Russian reassurances

The German Interior Ministry is advising schools to prepare children for crises and war, the Handelsblatt newspaper reported on Monday, citing a ministry spokesperson.

A raft of calls for "civic readiness" have been made by Western European governments since US president Donald Trump took office and the beginning of US-brokered Ukraine peace talks, described by German Foreign Minister Annalena Baerbock as "deadlocked.".

"Given the recent developments in the security situation, a greater focus should be placed on civil defense, including in school education," an interior ministry spokesperson told Handelsblatt.

According to the outlet, a Russian attack on NATO territory "in four to seven years" is considered "a realistic scenario" by German military, the Bundeswehr.

Schoolchildren should be "prepared for the worst," crisis response training should be introduced into school curricula, and emergency supplies should be stored in every home, the German ministry spokesperson reportedly proposed.

Moscow has repeatedly rubbished the claim it could attack a NATO country, since the escalation of the Ukraine conflict three years ago. However such "civic readiness' calls have been made across the EU and in the UK in the last week.

The European Commission has recently recommended that EU citizens stockpile essential supplies, including food and water, to sustain themselves for at least three days in case of emergencies.

Poland and Norway have reinstated Cold-War-era measures such as bomb shelters and bunkers and mass military training. Sweden and Finland already have guides available to citizens on how to respond if they come under attack.

On Monday, the Kremlin said Russia was open to discussing a full ceasefire to end the Ukraine conflict, as long as there are guarantees that Kiev will abide by it.

READ MORE: Kremlin responds to Kiev's claim of civilian casualties in Krivoy Rog strike

Russian President Vladimir Putin and his US counterpart Donald Trump held a phone conversation last month, following which Moscow agreed to a 30-day moratorium on strikes targeting energy infrastructure, with Ukraine also signing off on the proposal. Moscow, however, has since accused Kiev of repeatedly violating the agreement while stating it will honor it anyway.