"Did the Hundred Years War against France strengthen...." Topic

….a sense of English national identity?

"In 1337, King Philip VI of France confiscated the duchy of Aquitaine, a territory in south-west France, from Edward III,
king of England (Image 1: link The duchy had been attached to the
English crown since Henry II's marriage to Eleanor of Aquitaine in 1152, but the king of France now wanted to bring it
more firmly under French royal control. Tensions had been building for some time, but the final straw came when
Edward III allowed a rebel against Philip VI, named Robert of Artois, to shelter in Aquitaine. In response, Philip
confiscated the duchy. The stakes were raised further in 1340 when Edward III claimed the French throne himself by
descent from his mother Isabella, a French princess. These events marked the beginning of the long-running conflict
between England and France which lasted until 1453 and became known as the ‘Hundred Years War'

Initially, the conflict was not so much a national war between England and France as a dynastic conflict between two
monarchs over a particular territory. Consequently, Edward III had to persuade the English population to view the war
as a conflict not just between two kings but between two entire kingdoms and their inhabitants. This would enable
him to draw on a much broader basis of support for the war….."
Main page
link

Amicalement
Armand

Perhaps in the early part of Edward's reign, but as the burden of taxation dragged on, parliament, the nobles, attacked the cost of the war. All English kings would eventually face a parliament that insisted the cost of the war be borne by the king's household, hence the diminishing English War effort near at the end of Edward III's reign until the succession of Henry V. But even the Great Harry was facing parliamentary revolt against the cost of the war by the time of his death.

The really question was did it infuses England with hard currency from ransoms. It clearly made France poorer and England richier, but in the end it just flowed back to France.