<P> Beginning in 2015, Qatar has participated in the Saudi Arabian - led intervention in Yemen against the Houthis and forces loyal to former President Ali Abdullah Saleh, who was deposed in the aftermath of the Arab Spring uprisings . </P> <P> In March 2014, in protest of Qatar's alleged involvement in financing factions and political parties in ongoing Middle Eastern conflicts, Saudi Arabia, the UAE and Bahrain recalled their ambassadors to Qatar . The three countries recalled their ambassadors in November of that year after an agreement was reached . </P> <P> On 5 June 2017, a number of countries led by Saudi Arabia, the UAE, Bahrain and Egypt (collectively referred to as the' Quartet') severed ties with Qatar and enacted several punitive measures, such as closing air, land and sea borders to Qatar . Saudi Arabia also halted Qatari involvement in the ongoing war in Yemen . The Quartet justified their actions by alluding to alleged Qatari ties to' terrorist groups' in the region . </P>

The reasons that led to sign treaty of protection in 1916