Portugal

About the flag

Portugal is correct. The flag’s prominent coat of arms—an armillary sphere behind a shield—marks it out from the options. The green-and-red design was adopted after the 1910 revolution that established the Portuguese republic, making it distinct from Germany’s black-red-gold, Malta’s white-and-red with the George Cross, and Serbia’s tricolor with a double-headed eagle. The armillary sphere recalls Portugal’s Age of Discoveries and maritime navigation (think Vasco da Gama and Magellan), while the shield features five blue shields (the “quinas”) and seven castles, tied to medieval victories and defense. Memory tip: green and red for the republic, golden sphere for explorers—Portugal’s global seafaring legacy.