The second wave consisted of university professors who arrived in the 1960s and also in the 1970s.
Each wave consisted of three such formations with killer-ship escorts between them.
The first two waves consisted mostly of criminals or political prisoners.
The second wave consisted of "boat people" who came from 1978 to 1982.
The third wave consisted of former political prisoners and detainees from Vietnam.
The next wave consisted of packaged software that could be made available to record handwriting at many locations.
But this third wave consisted of two wings, and unlike the earlier, it formed a shallow wedge.
These waves consist of just one large creep and are extremely difficult to defeat.
The third wave again consisted of high-altitude level bombers that missed Repulse entirely.
These waves consists of just one or two large creeps each, that take many hits to defeat.