Strangely, the book that this play from the 1590s most reminded me of was Emma Sky's The Unravelling, about the aftermath of the US invasion of Iraq, because it had so many similarities: a young, inexperienced leader invading a completely unknown country, because he'd been told by an unscrupulous fantasist that everyone would come out in support the invasion, whose main justification for the action was the God was on our side, and He would sort everything out, and everything goes to shit quite quickly; and this is despite the people who understood stuff, saying "Are you sure? This looks a bit dodgy to me". And foreign rulers saying "Sure we'll support the war effort, but we've just got this other thing to do first. And this. And this. Tell you what, you go ahead, and we'll join in later".
Sure, George W Bush didn't bring boat loads of laundresses and courtesans to Iraq, and to be fair he was trying to overthrow the child-killer, as opposed to innocently supporting and trying to reinstate him (as Sebastian of Portugal was doing), and his totally inept military action didn't destroy the entire ruling class of his own country and cause civil upheaval in Europe (though Tony Blair's support for it did destroy the British Labour Party for a generation), but this play really does show that we learn absolutely nothing from history.
This is a really good Early Modern play, if one could get over the (sort of half-hearted but in a sense that makes it so much worse) racism, against the "black Moor" Muly Mahamet, who is constantly (and unnecessarily) referenced as black. Charles Edelman says George Peele (in the Revels edition, the one I read) is having a practice run for Aaron the Moor in Titus Andronicus (which most scholars now seem to think is at least half George Peele's work these days), but whereas Aaron is a fully rounded Machiavel (and in many ways the most coherent character in that play) Muly Mahamet is simply evil.
Still, mostly pretty darn good.