https://ja.wikipedia.org/wiki/不同意性交等罪#強姦罪と強制性交等罪、不同意性交等罪の違い
https://www.law.cornell.edu/uscode/text/18/2241

As of this year (2023), Japanese law has a single crime for rape that covers various circumstances. Before that, there was a distinction between "rape involving violence or threat" and "incapacitated rape". According to the kokugos, 暴行 refers to the former category.
In US federal law, the terminology is "by force or threat". Maybe just "by force" is sufficient.

@@ -25,0 +26 @@
+<pos>&vt;</pos>
@@ -27,2 +28 @@
-<pos>&vt;</pos>
-<gloss>rape</gloss>
+<gloss>rape (by force)</gloss>

I assume the intended nuance from "(violent)" might be similar to the typically-understood distinction between "assault" and "aggravated assault"? Of course the action in question is inherently violent, but we cannot deny that there is nevertheless a significant difference in *character* between the stereotypical "jumped in an alley" scenario versus the (tragically) more common "taken advantage of by someone you trust" scenario... Is there anyone familiar with how these distinctions are drawn in practice in, for example, Japanese law? What an unpleasant topic.

dictionary.com:
rape
unlawful sexual intercourse or any other sexual penetration of the vagina, anus, or mouth of another person, with or without force ...

A fair point. Possibly the refs Marcus mentioned were making a pont we'd not really attempt in English.