(I've checked this link, but didn't get what I want.)
The first to strike is a sandstorm as blinding and deadly as any northern blizzard.
The first that strikes is a sandstorm as blinding and deadly as any northern blizzard.
(The original sentence is the one 'to' in it, and the other is made up by me, so there might be any grammatical issue.)
What's the difference here? And I've seen so many times that the news papers usually use "noun + to + verb" sentences, such as "President Donald Trump to visit Iowa in June". It seems to me like the sentence is not finished. Why didn't they put that like "President Donald Trump who is going to visit Iowa in June", or just "President Donald Trump will visit Iowa in June"?