European powers pursued access to China and Japan for four interconnected reasons:
Huge populations = vast consumer bases for textiles, machinery, opium (to China), and luxury goods.
Tea, silk, porcelain, spices (China); copper, silver, gold, coal (both). Critical for European industrial economies.
Protestant and Catholic missionaries sought converts; religious zeal often preceded or accompanied commercial/military pressure.
Strategic ports, naval bases, and spheres of influence enhanced global standing. Rivalry (e.g., Britain vs. Russia vs. France) intensified the scramble.
Unequal treaties, Opium Wars (China), forced opening of Japan (1853 Perry Expedition), and decades of semi-colonial domination reshaped East Asia.