Shortly before his resignation he recommended to the French government that the Tonkin Expeditionary Corps should be constituted as a regular two-brigade army division with the normal complement of artillery and ancillary support.
Tidak lama sebelum pengunduran dirinya, dia merekomendasikan kepada pemerintah Prancis bahwa Korps Ekspedisi Tonkin harus dibentuk sebagai divisi tentara dua-brigade biasa dengan komplemen normal artileri dan dukungan tambahan.