article_snippet: Tricky issues' remain in nuclear talks with Iran .
article_snippet: The Arabic term "al-Hazm" can be translated as "determinant" or "decisive.
article_snippet: A fight on the ground could prove bloody and lengthy.
article_snippet: The conflict splits the region along religious lines.
article_snippet: But the agreement over the weekend carries extra significance amid the battle against Houthis in Yemen.
article_snippet: You have civil wars, you have proxy wars.
article_snippet: You have regional wars all in one," a Saudi official said.
article_snippet: And these things have so many logs on the fire, to use the metaphor, that these things ... burn and burn and burn for a long time.