No. Saudi Arabia never started a war but it participated in some when it had to, such as the first Gulf War between Iraq and Kuwait.
No
Saudi Arabia was neutral in World War 2.
No.
A national of Saudi Arabia is a Saudi.
What do you mean by in? I think he/she thinks which contents is it in. It is in the middle east.
Never.
Some call Saudi Arabia the KSA (Kingdom of Saudi Arabia) for short.
Saudi Arabia is its own country.
Yes, not by Saudi Arabia but just Arabia then.
Saudi Arabia has never been "occupied" or "dependent", so the question is inapt. Saudi Arabia was created as a result of the Nejd-Hejaz War in 1924-1925 that resulted in the conquest of Hejaz by Nejd. The Nejdi leaders, the Saud family, declared the united polity to be the Kingdom of Saudi Arabia.
Riyadh is the capital and most populous city of Saudi Arabia.
No, there are no pyramids in Saudi Arabia.