The Saudi kingdom and its coalition declared a war against Yemen on March 26, 2015. The coalition members included: Saudi, UAE, USA, Qatar, Bahrain, Kuwait, Jordan, Egypt, Morocco, Senegal and Sudan. Britain, France, Malaysia, Djibouti, Eritrea, Somalia and other countries have provided their support to the coalition through the sale of weapons, logistical and/or intelligence services.
Below is a summary of the human casualties reported by the Legal Center for Rights and Development - a Yemeni local NGO - for 700 days since the war started. You can visit their website for more info http://www.lcrdye.org/eng
And this is a summary of the places hit or destroyed for the same period: