title: Qatar, Russia sign agreements on air defense, supplies
text: DOHA (Reuters) - Qatar signed a military technical cooperation agreement and  memorandum of understanding on air defense and military supplies with Russia on Thursday, a statement from the Qatari defense ministry said. It did not give details but Russia has been more active in the region since Saudi Arabia, Egypt, Bahrain and the United Arab Emirates severed ties with Qatar in June, triggering the worst diplomatic crisis in the Gulf in years. The agreements were signed between Russian Defence Minister Sergei Shoigu, who visited the Gulf state on Wednesday, and Qatari Minister of State for Defence Affairs Khalid bin Mohammed al-Atiyya. Earlier this month, Russia signed a memorandum of understanding to help Saudi Arabia in its efforts to develop its own military industries. The kingdom agreed to buy Russian S-400 surface-to-air missile systems. Qatari and Russian ministers said they also discussed the Gulf and Syrian crises and  combating terrorism and violent extremism . 