The 1987 Intermediate-Range Nuclear Forces (INF) Treaty was significant because it required the US and Soviet Union to eliminate all nuclear and ground-based ballistic missiles and cruise missiles. This was big, because it reduced the threat of nuclear war all over the world. Without missiles, the world had a much less threat of destruction.
Protecting public health is an important duty of state government because the government wants to make sure that everyone is healthy. This is why the government contributes to cancer research.