RUGBY, England—Stuart Field raised his first flags in July: the English red cross of St. George and also a smattering of the British red, white and blue, hanging them from his hometown’s streetlights.

In the United States, the Stars and Stripes are everywhere: on porches, lawns and pickup trucks. The national flag is part of the scenery, almost invisible in its ubiquity. In England, flags are rarer ...

LONDON — England’s flag flutters in pub gardens, is painted onto the faces of smiling children and is waved in support of the national women’s soccer team by cheering crowds that reflect the capital’s ...