a sea, an ocean / a lake / (figuratively) an object covering over a large area, as in 血の海 (chi no umi, “pool of blood”) or 火の海 (hi no umi, “sea of fire”)

sailing on

sail on

新興国: emerging country, newly industrialized country; (dated) a newly independent country, no longer a colony

an invasion

invade, militarily go into

to have faith in a religion, to profess faith in

a port in Kobe / a port in Yokohama / a port in Yokosuka

make progress

intimacy