Complex sentence: Jaffna forces were expecting the arrival in Kayts, but fleets were landed in Colombuthurai with the support of heavy firepower, and first wave of 150 Portuguese soldiers and 200 Lascarins reached the land.
Split into simpler sentences: Jaffna forces were expecting the arrival in Kayts, but the fleet landed in Colombuthurai. With the support of heavy firepower the first wave of 150 Portuguese soldiers and 200 Lascarins reached the land.