Daniel U. Thibault
convert the province (assuming no enemy entered the province in the meantime).
More accurately, "(assuming no enemy enters the province in the meantime and breaks your conqueror status)". An enemy that enters the province and is then killed in the ensuing Battle does not break your conqueror status (as long as your converting Legion survives). Conversion is broken if your Legion is killed, or if the Battle is inconclusive and the province reverts to 'at war' status.