In Saudi Arabia, the prince has excelled, but abroad, he has failed to erase the scars of his alleged role in the 2018 assassination of journalist Jamal Khasoggi.
But in the meantime, the new US administration that enter the White House the President-elect Joe Biden has made it clear that he will take more drastic measures than his successor on the Saudi issue.
What are the three wars on the ground right now, which Saudi crown prince has involved on and why are they important to the United States and Saudi Arabia?
3. The war in Yemen
This war has been a disaster for all those affected, especially the average Yemen who is in a state of famine.
It was not Saudi Arabia that started the war - it was started by Houthi rebels who marched as far as the capital Sanaa in 2014 overthrowing the country's most powerful government.
The Houthi are an ethnic group from the northern part of the country where they make up 15 percent of the country's population.
In 2015, Prince Mohammed bin Salman, then the country's defense minister, secretly joined a coalition of Arab countries to launch a major air strike on Yemen, where at the time he thought in a few months the rebels of the Houthi will make surrender
For more than six years, thousands of people have been killed and many displaced, with both sides committing war crimes, and yet Saudi Arabia has failed to drive Houthi rebels from Sanaa and much of western Yemen. .
With Iranian help, Houthi rebels continue to send rockets and explosives into Saudi Arabia, destroying some of the country's oil products.
During the war in Yemen, several peace agreements were scrapped one by one.
The war in Yemen is killing its own people and winning Saudi Arabia's pockets, and many people abroad are criticizing it.
But time is running out for Saudi Arabia in its efforts on this war.
In 2016, at the end of his term, President Barack Obama began to reduce US aid to the war. But Donald Trump administration changed the system by giving Saudi Arabia all the support and intelligence it needs.
Mr Biden has since indicated that he will not continue to provide such assistance.
Fire is now being put out to end this war by any means.
Saudi women locked up
The incident has sparked controversy in Saudi Arabia from around the world.
Thirteen Saudi women have been arrested in connection with a series of peaceful protests against the government's crackdown on dissent, including allegations of sexual harassment.
Several women, including Loujain al-Hathloul, were arrested in 2018, before the ban on women's driving was lifted in the country.
Officials in Saudi Arabia have accused Ms Hathloul of spying and "receiving money from abroad" but Saudi officials have failed to provide any evidence.
Her friends stated that she had done nothing but attend a human rights conference abroad and apply for a job at the United Nations.
Her family reports that she was beaten, tortured with electric shocks and attempted to rape her while in custody.
Just as Saudi Arabia got involved in the war in Yemen, this is another hole the country has built for itself and it tells where it is now looking for a solution.
After holding women for a long time, with no evidence to show in court in an independent judiciary, the way out of this situation is to seek reconciliation.
The Biden government is expected to raise the issue in the future.
In 2017, during President Trump's visit to Riyadh, Saudi Arabia teamed up with the United Arab Emirates, Bahrain and Egypt to evacuate their Gulf neighbor Qatar.
The trip brings together three conservative Sunni Gulf states of Saudi Arabia, the UAE, Bahrain and Egypt.
The reason given by the countries is that they accuse Qatar of supporting IS, which is responsible for terrorist activities.
The United Arab Emirates has provided evidence that some terrorists live in the country, but the country has denied supporting terrorism.
As the Houthi rebels have done in Yemen, it has been speculated that the Qatar will later secede and surrender.
But that is not possible, given that the country is rich in natural gas and invests nearly 40 billion in the UK economy alone - with the support of Turkey and Iran.
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