Invited by a disgruntled prince wanting to depose his father, an Islamic Sultan sieged a major Hindu city. He sailed south three days and entered the harbor of Sandabur-Goa with his army of armored cavalry and infantry. Catapults of massive stone were flung out from the harbor, but the sultan’s army made it ashore. Those who were not slaughtered fled into the king’s palace, which the sultan set on fire, forcing a surrender. Fighting over the city would persist for approximately two more years between this Islamic Bahmani Sultanate and the Hindu Kadambas Dynasty, but ultimately would fall to the Sultan for 15 years before returning to Hindu rule.
The naval battle off Tauris Island in the Adriatic Sea was fought between Caesarean and Pompeiian forces after the Great Roman Civil War. The opposing fleets clashed at such close quarters that melee combat essentially decided the battle.
Having learned from his experience invading Britannia the first time around, Julius Caesar ventured forth once again a year later, but this time with a full military force and his special brand of simple, straightforward, adaptable military genius. The result was essentially Roman dominion over the southern half of Britannia for the next several millennia.
Much like Mongol attempts to invade Japan, Romans faced the challenge of safely transporting their army to a rocky island across a stormy sea.
Conquering a land is not as simple as just moving in and beating people up. Even after battles are won, the local people must accept your rule. If not, you will have to deal with uprisings like Julius Caesar did as he undertook his effort to conquer Gaul.
From a little lowland region of the Netherlands to a burgeoning trade network all over the Indian Ocean reaching as far east as Japan, this company of adventurers became a corporate monopoly through ingenious engineering and mercantilism.