Answer:
The State of the Union speech before Congress was largely about the national security of the United States and the threat to other democracies from world war that was being waged across the continents in the eastern hemisphere. ... He outlined the U.S. role in helping allies already engaged in warfare.
Answer: before
Explanation: A subordinating conjunction is a word or phrase that links a dependent clause to an independent clause. Subordinating conjunctions are conjunctions that are used at the beginning of subordinate clauses. Some examples of these conjunctions are; although, after, before, because, how, if, once, since, so that, until, unless, when etc.
It is an opinion rather than a fact because there is no data to support that all service members and veterans have challenges when they return. There are no factual statistics or data to back up this claim so therefore it is an opinion