After three years of Gulf crisis, Saudi Arabia has agreed to re-open its airspace, land and sea borders to Qatar as of Monday evening. Saudi Arabia and its Arab allies have signed a “unity and stability” declaration with Qatar that is set to end a years-long boycott of the Gulf state, in a move seen as a victory for Doha. Confirming reconciliation with Qatar, Saudi Arabia's foreign minister said on Tuesday that the 41st Gulf Cooperation Council summit has opened a new phase of "solidarity" and "stability" between regional states. On Tuesday, Qatar’s emir Sheikh Tamim bin Hamad Al-Thani was embraced by Saudi Crown Prince Mohammed bin Salman upon arrival in Saudi Arabia to attend the annual Gulf Cooperation Council (GCC) summit.