What is a strategy ?
A directed course of action to achieve an intended set of goals (wikipedia)
An action is strategic if:
- It aims at achieving strategic long term goals
- It uses resources in an irreversible way (ex: spending money, when the money has gone it doesn't come back automatically) and/or it can't be easilly undone
An example of a strategic action is getting married: it costs money and isn't easilly reversed ;-)
A tactical action will then aim at shorter term goals and involve less resources.