NATO is training to take on Russia in its largest drills in decades - here's what these massive war games look like

Around 50,000 troops from 31 nations, including the 29 NATO allies, Finland, and Sweden, are participating in NATO's largest exercise in decades - Trident Juncture 2018.

More than 250 aircraft, 65 ships, and 10,000 vehicles are taking part in air, land, and sea drills, as well as special operations and amphibious exercises, in and around Norway.

"There's a strong deterrent message here that will be sent," Admiral James Foggo, head of US Navy forces in Europe and Africa and commander of Allied Joint Force Command in Naples, Italy, told reporters earlier this month. The Russians, who were invited to observe the drills, "are going to see that we are very good at what we do, and that will have a deterrent effect on any country that might want to cross those borders, but especially for one nation in particular."

These photos show NATO allies and partners training for an Article 5 scenario, a collective defense situation where land, air, and amphibious assets mobilize to repel an adversary threatening the sovereignty of a NATO ally or partner state.