What does the phrase "...long twilight struggle..." refer to in this excerpt?

What example is most likely from a cover letter

Danny went for a long bike ride he covered at least forty miles

Which words and phrases connect the ideas in this excerpt from a compare and contrast essay? the team considered using products made by company a and company b. however, the budget and concerns about learning about two products meant that they needed to choose only one. they realized that the product from company a was of excellent quality, to company b's product.