Following this meeting, Guderian continued to voice his concerns over an operation that would likely degrade the panzer forces that he had been attempting to rebuild. He considered the offensive, as planned, to be a misuse of the panzer forces, as it violated two of the three tenets he had laid out as the essential elements for a successful panzer attack. In his opinion, the limited German resources in men and materiel should be conserved, as they would be needed for the pending defence of western Europe. In a meeting with Hitler on 10 May he asked,
