Russia’s annual military forum is underway in Patriot's Park, on the outskirts of Moscow.
From fighter jets to hypersonic weapons and battle tanks, it’s one of the world’s biggest displays of modern military technology.
Russian President Vladimir Putin addressed the crowds on the first day of the forum, via a video message.
He praised Russian workmanship saying the expo demonstrated the "huge potential of our armorers, builders, engineers and workers. It's their hands and talent which help create unique equipment for the Russian army and fleet."
There are more than 20,000 exhibits on display from Russia, China, India and Turkey, among others.
For international delegations, it's an opportunity to window shop, and see the most innovative military hardware in action.
The secretary of national defense of the Philippines told CGTN that he is in Moscow with a modest budget and is looking at buying equipment for the Army, Navy and Airforce.
According to the Russian Defence Ministry, representatives from more than 50 countries will be holding talks with Russia on the sidelines of the forum.
The Central African Republic has already signed a military co-operation agreement with Russia – a move which some see as another step in Moscow’s agenda to grow its influence in Africa.
As Russia faces the prospect of more economic sanctions from the West over Crimea and the alleged spy poisoning in the UK, this is an opportunity for the country to forge new business deals and partnerships.
By Jessica King