system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek] What haven't the Borg sent (n) cubes to assimilate the Federation where n>1?

Is it the Q or some other transcendent force taking an interest in the Federation ensuring the Borg never send more than they are capable of overcoming?
gpt
The Borg Cube encountered at Wolf 359 was sent as a scout to asses the Federation. Following this incident we realized that we were woefully unprepared to combat a serious Borg invasion in our current state. As a result military research was ramped up. The most notable example of this military ramp-up was the development of the first Federation war ship, the Defiant.

The exact reason why the Borg did not immediately send more ships to assimilate the Federation is unknown, although it is likely that the ease with which the original cube crushed our defense fleet played to our advantage. It is possible that they decided to pursue more pressing matters until such a time that they could turn their full attention to us. It is fortunate that they did delay as this allowed us to upgrade our existing fleet to a state that would allow us to defend ourselves from the Borg.