The answer is (b.) the first gulf war
The first gulf war is between the coalition forces led by the US against Iraq. It is also know as Persian gulf war, Kuwait war, first Iraq war, or Iraq war. It started on August 2, 1990 and ended on February 28, 1991. While the six-day war is the conflict between Israel and Egypt in 1967 and Yom Kippur War in 1973.
Taiwan is a small, densely populated island with a highly industrialized economy, since from the start of it independence it has been continuing to grow.
The Ottoman Empire. When one European power annexed a part of its crumbling power, it caused concern that they might get it all. The other European powers wanted a chance at picking it apart too.