The Saudi kingdom and its coalition declared a war against Yemen on March 26, 2015. The coalition members included: Saudi, UAE, USA, UK, Qatar, Bahrain, Kuwait, Jordan, Egypt, Morocco, Senegal and Sudan. Malaysia, Djibouti, and Pakistan joined the coalition later. Other countries provided their support to the coalition through the sale of weapons, logistical and/or intelligence services. These include: France, Eritrea, Somalia, Spain, Germany, Canada, Finland and Australia. In June 2017, the Saudi coalition expelled Qatar from the coalition. And on June 28, 2018, Malaysia left the coalition.
Below is a summary of the human casualties and destruction reported by the Legal Center for Rights and Development - a Yemeni local NGO - for 1000 days since the war started. You can view more details in their published report [here] or visit their website http://www.lcrdye.org/en.
The number of civilians that have died because of the indirect consequences of the Saudi coalition aggression are hardly taken into account. The LCRD estimates this number to be 160,000 civilians. These include people that died because of malnutrition after their families lost their source of income, and others that died because they couldn't get proper medical care.
And this is a summary of the places hit or destroyed for the same period: