More than 200 defence and intelligence companies from 24 countries have displayed technological solutions to security threats at a Qatar event, aiming to sign contracts with the Gulf state. With Qatar making logistical and security preparations for the 2022 World Cup, a delegation from Russia - the host nation of this year's football tournament - had the most recent logistical and security lessons to share during the three-day Milipol Qatar 2018 event, which started on Monday. The advice included hiring and training tens of thousands of stewards who are not military or security forces, but another layer of security specialised in managing large crowds. Other issues included securing and safeguarding the crowds and the provision of food to cater for an influx of diverse people. Major General Nasser bin Fahad Al Thani, the president of Milipol Qatar, said his country has signed several contracts with international contractors worth tens of millions of dollars to enhance the country's technological infrastructure and its computer systems.