Nationality and identity are interconnected in The English Patient, functioning together to create a web of inescapable structures that tie the characters to certain places and times despite their best efforts to evade such confinement. Almásy desperately tries to elude the force of nationality, living in the desert where he creates for himself an alternate identity, one in which family and nation are irrelevant. Almásy forges this identity through his character, his work, and his interactions with others. Importantly, he chooses this identity rather than inheriting it. Certain environments in the novel lend credence to the idea that national identity can be erased. The desert and the isolated Italian villa function as such places where national identity is unimportant to one's connection with others. Kip, who becomes enmeshed in the idea of Western society and the welcoming community of the villa's inhabitants, even dismisses his hyperawareness of his own racial identity for a time.
Ultimately, however, the characters cannot escape from the outside reality that, in wartime, national identity is prized above all else. This reality invades Almásy's life in the desert and Kip's life in the Italian villa. Desperate for help, Almásy is locked up merely because his name sounds foreign. His identity follows him even after he is burned beyond recognition, as Caravaggio realizes that the "English" patient is not even English. For Kip, news of the atomic bomb reminds him that, outside the isolated world of the villa, western aggression still exists, crushing Asian people as Kip's brother had warned. National identity is, then, an inescapable part of each of the characters, a larger force over which they have no control.
One theme that emerges in the novel is that love, if it is truly heartfelt, transcends place and time. Hana feels love and connection to her father even though he has died alone, far from her in another theater of war. Almásy desperately maintains his love for Katharine even though he is unable to see her or reach her in the cave. Likewise, Kip, despite leaving Italy to marry in India, never loses his connection to Hana, whom he imagines thirteen years later and halfway across the world. Such love transcends even death, as the characters hold onto their emotions even past the grave. This idea implies a larger message—that time and place themselves are irrelevant to human connection. We see this especially in Almásy's connection to Herodotus, whose writings he follows across time through the desert. Maps and geography become details, mere artificial lines that man imposes on the landscape. It is only the truth in the soul, which transcends time, that matters in the novel.