We use (characters set in type that slants to the right) and underlining to distinguish certain words from others within the text. These typographical devices mean the same thing; therefore, it would be unusual to use both within the same text and it would certainly be unwise to italicize an underlined word. As word-processors and printers become more sophisticated and their published products more professional looking, italics are accepted by more and more instructors. Still, some instructors insist on underlines (probably because they went to school when italics were either technically difficult or practically unreadable). It is still a good idea to ask your instructor before using italics. (The APA continues to insist on underlining.) In this section, we will use italics only, but they should be considered interchangeable with underlined text.
According to Shalev, the closer the public is to the actual combat, the better the war will be understood and the less difficulty soldiers will have when they come home. The Israelis are benefiting from what could be called the shared public meaning of a war. Such public meaning—which would often occur in more communal, tribal societies—seems to help soldiers even in a fully modern society such as Israel. It is probably not generated by empty, reflexive phrases—such as “Thank you for your service”—that many Americans feel compelled to offer soldiers and vets. If anything, those comments only serve to underline the enormous chasm between military and civilian society in this country.
Do you underline essay titles? - Quora