Sentence:  Thus, he exalts as a means of republican cohesion, as the unshakeable basis of the modern nation what he calls "manly love," a sort of <WSD>Achillean</WSD> friendship, but at the same time it is this love, this passionate friendship that he sings. 
Meaning of the word marked with <WSD> tags:  Of or relating to male homosexuals or male homosexuality, in the style of Achilles' relationship with Patroclus.