The Heights - 7:86
Do not sit at the head of every path to pervert the way of Allah and to threaten the believers and turn them away from it. Think how He multiplied you when you were few in number. See how is the end of the corrupters.
The intention is to increase the number of fighters of the oppressed people in order to resist the defeatists and aggressors:
The Spoils of War/8:26
Remember when you were few in number, oppressed and despised in the earth, and you feared that people would snatch you away. He provided you with a home and supported you with His help and gave you sustenance from good things so that you might give thanks.
The Night Journey/17:6
Then We will give you the ability to defeat them, and We will support you with wealth and descendants and multiply your warriors.