One of the more surprising aspects of the early missions of the
NX class Enterprise during the 2150s was the number of hostile
alien species which the ship encountered. One of the more
mysterious of these incidents came in 2151, during the ship's
first year of exploration. Enterprise was deploying Subspace
Amplifiers to expand Earth's communications network when an
alien vessel approached. The ship refused all attempts at
communication, simply observing Enterprise for a short time
before departing. Over the next few days the vessel returned
several times, but on subsequent visits it scanned Enterprise
and then launched a series of unprovoked attacks on the ship.
The alien vessel was fitted with a defensive energy screen which
Enterprise's torpedoes had little impact upon. The initial haste
to get Enterprise out of dock in time to return the Klingon
courier Klaang to his home world had meant that there was no
time to install the ship's most powerful weapons - three five
hundred Gigajoule phase cannon. The engi