Definition of "strategically"

Ursula saw that now Bella Watson's chance meetings with him had to be strategically and singly planned by Bella, whose wifely attentions to the bereaved man were markedly meaning.

1907, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Human Toll (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 211