Saudi Arabia's most powerful state in the Persian Gulf region. Qatar is a small country in its eastern border. If that state purchases the F400 missile, it is quite a cause for concern for Saudi Arabia. Qatar government is desperate to buy this missile. Their talks with Russia are also going on.
Meanwhile the Qatar government has not told anything about this. But after the threat, the country's capital city, Doha, Fear of newer Gulf war fears spreading the tiny country on the eastern edge of Arabia.
In October last year, Qatar signed an agreement to buy F-400 missile from Russia. In the same month, King Salman went to Russia to visit King Salman. He also made the initial agreement to buy F-400 missile from Russia.
On June 5 last year, Saudi Arabia, Bahrain, United Arab Emirates, Egypt imposed sanctions against Qatar on accusations that terrorism is helping. Some countries cut off diplomatic relations with the country and some countries. Since then Saudi Arabia has a hostile relationship with Qatar.