The Indochinese archipelago has always been an area of abundance, rich in seafood and rice; in Vietnam, for example, the rice crop can be harvested three times a year. Vietnam also has a long coastline, convenient for transportation and trade.
印支半島從來就是漁米之鄉；尤其越南，一年有三穫米，又近海，交通和貿易均稱便捷。