This. If you listened to Trump in the debate he said that we would not strike first if it came to nuclear weapons. He says that he will still use them if somebody else attacks first but we will not throw the first punch.
Trump has exactly the right idea when it comes to nukes.
Actually he contradicted himself in the span of about 3 sentences. First he said he wouldn't use them first, then he said he wouldn't take anything off the table. He was babbling nonsensically.