Russia's military has been rocked by a string of explosions and fires in recent weeks that have left dozens dead or wounded

Reuters

Russian President Vladimir Putin attends the Navy Day parade in Saint Petersburg

• Over the past month and a half, the Russian military has seen a fire claim the lives of sailors aboard a secret nuclear submarine, an explosion at a ammunition depot, and, as of Thursday morning, an explosion during the testing of a rocket engine at a military test facility.
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The past few weeks have been rough for the Russian military, as a string of serious accidents have led to dozens of deaths and injuries.

Accidents are certainly not uncommon for the Russian military, which lost its only aircraft carrier last fall when a heavy crane punched a hole in it as the only dry dock suitable for carrying out repairs and maintenance on a ship that size sank due to a power failure, but the last few weeks have certainly been a challenge.

Over the past month and a half, the Russian military has seen a fire claim the lives of sailors aboard a secret nuclear submarine, an explosion at a ammunition depot, and, as of Thursday morning, an explosion during the testing of a rocket engine at a military test facility.