The Economist explains

What are MANPADS, the portable missiles bringing down Russian aircraft?

Britain is supplying Ukraine with its latest generation of STARStreak missiles

Mandatory Credit: Photo by London News Pictures/Shutterstock (1707995b)A gunner of 16 Regiment Royal Artillery mans a Starstreak High Velocity Missile System (HVM) at BlackheathMissiles on Blackheath for Olympics Security Test, London, Britain - 03 May 2012Two members of 16 Regiment Royal Artillery man a Starstreak High Velocity Missile System (HVM) at Blackheath in London today (03/05/12). The missiles have been deployed as part of an exercise involving the RAF, British Army and Royal Navy taking place across London as part of security preparations for the 2012 London Olympic Games

MAN-PORTABLE AIR DEFENCE SYSTEMS (MANPADS) are playing an unexpectedly important role in the war in Ukraine. These shoulder-fired missiles, typified by the American Stinger, are only effective against low-flying aircraft and at a range of a few kilometres. But they have scored a number of kills and are severely impeding Russian air operations. Now Ukrainian forces are getting an upgrade, in the form of the latest STARStreak missiles supplied by Britain. Why are MANPADS crucial to Ukraine’s defence, and what difference might the new missiles make?

Military analysts were puzzled when Russia failed to knock out the Ukrainian network of long-range, radar-guided S-300 surface-to-air missiles at the outset of the war. Though some have been destroyed, other S-300s continue to operate, forcing Russian aircraft to fly at low altitudes to avoid radar detection. And whereas NATO helicopters have mast-mounted sights that allow them to fire guided missiles from long range, Russian attack helicopters tend to carry pods of unguided rockets, behaving like slower ground-attack aircraft that must fly forward while attacking. Both of these factors put Russian aircraft in the sights of MANPADS.

More from The Economist explains

Who are the Druze, the victims of a deadly strike on Israel?

The religious minority has often been caught up in regional crossfire in the Middle East

Myanmar’s rapidly changing civil war, in maps and charts

Ethnic militias and pro-democracy groups are scoring victories against the governing junta


Who will be Kamala Harris’s running-mate?

She is reportedly vetting a dozen options. These are the top three


Why have so few American presidents been from the West?

Kamala Harris’s nomination would be a milestone for the region

Why the Olympics still has a doping problem

Cheating with drugs has again become an organised affair

Why some Russian athletes will be eligible to compete at the Paris Olympics

Despite antipathy between the Russian government and the International Olympic Committee a handful will compete