Tuhia he tomokanga mō tēnei wāhanga - I mahi a Mortier i roto i ngā Pakanga o te Whanaungatanga o Wīwī i roto i ngā pakanga o te tau 1792 me te tau 1793 i te rohe ki te raki-rawhiti me te Netherlands, ā, i muri mai i te Meuse me te Rhine. I tukuna a Mortier e te Tiamana a Jacques Maurice Hatry ki te whakawhitiwhiti korero mo te tuku o te Fortress o Mainz, i oti pai i a ia ka hoki ki Paris. I te Pakanga o te Tuarua o te Whakawhanaunga i te tau 1799, i whakatairangahia ia ki te rangatira o te brigade, katahi ka noho ko te rangatira o te wehenga. I te Pakanga Tuarua o Zurich
, i arahi ia i te kaha o te 8,000 i te whakaeke mai i Dieticon ki Zurich. Ko tana whakahaere i te mahi French o Hanover, i kawe mai i te Whakaaetanga o Artlenburg, i arahina a Napoleon ki te whakauru i a Mortier ki te raarangi tuatahi o nga marshals i hangaia i te tau 1804.