Complex sentence: The "Empress of Japan II" was introduced on the Pacific service in 1930; and she would continue sailing the Vancouver-Yokohama-Kobe-Shanghai-Hong Kong route for the rest of the decade.
Split into simpler sentences: The "Empress of Japan II" was introduced on the Pacific service in 1930. She would continue sailing the Vancouver-Yokohama-Kobe-Shanghai-Hong Kong route for the rest of the decade.