The conflict in Yemen is largely seen as a proxy war between Saudi Arabia and Iran.
In 2009, fighting between Houthi rebels and the government of Yemen spilled over into Saudi Arabia.
In the decade since, the Saudi mission has both deepened and spread — what started as strikes is now a war waged on land, from the air, and on sea.
That mission intensified after Houthi forces gained control of Sanaa, the capital of Yemen, in 2014. The following March, Saudi Arabia and its coalition isolated Yemen economically while continuing to launch air strikes. The compounding political unrest, economic isolation, and military casualties have resulted in deadlock — and devastation.
Saudi Arabia has come under harsh scrutiny for atrocities, such as the August bombing of a school bus of children on their way to summer camps, as well as Saudi Arabia's role in the hyperinflation that's driving the country's hunger crisis.
Saudi Arabia's role in Yemen fell under scrutiny again in the wake of the Kingdom's shifting explanation of the death of journalist Jamal Khashoggi.
Read more: Here's everything we know about the troubling disappearance and death of journalist Jamal Khashoggi