Answer:
Western presence now is just like the crusader’s presence long ago
Step-by-step explanation:
Allusion happens when you make a reference or quote. It is a kind of intertext, where one text relates to the other explicitly or implicitly. Thus it becomes admissible to mention facts, people, works of art, historical events, celebrities, already existing in other works.
The Allusions to the Crusades in the poem "Crusaders" is intended to create a point of connection between the Western presence that is now like the crusader's presence long ago