Nuclear
The Nahha have both fission and fusion devices. We do not believe they are stockpiling them at this time.
Biological
Chemical
The Nahha could easily use chemical weapons but in their view these are too crude and inefficient.
Quantum
Quantum based technology is unknown - but we understand that they have a 'Material Disrupter' device which can damage the chemical structure of a substance at a distance.
Automation
Robotic invasion ... ?