Final answer:
The "dust" mentioned in lines 4-5 likely represents the remains of fallen soldiers.
Step-by-step explanation:
The "dust" mentioned in lines 4-5 likely represents the remains of fallen soldiers. This can be inferred from the line "A dust whom England bore, shaped, made aware" (line 5), which suggests that England gave birth to these soldiers and shaped them into soldiers. The use of the term "dust" implies that these soldiers have now turned to dust as a result of their sacrifices in war.