After more than seven months of conflict, could the taboo of supplying Western tanks to the Ukrainians fall? The first to offer their vehicles were the Poles and the Czechs, in April. Soviet models - which the Ukrainians know well - to which are added those captured from the Russians on the ground.
But a move upmarket is hoped for on the Ukrainian side, to continue the counter-offensive against the Russians. In recent days, President Volodymyr Zelensky has shown interest in more powerful and sophisticated Western tanks.
Find our story on video, with the analysis of Clément Daniez, journalist in the World service of L'Express.