Army soldiers M777 howitzer artillery
US soldiers move an M777 towed 155 mm howitzer at a training area in Germany in March 2013.
  • Towed artillery has long been a key component of the US military's arsenal.
  • The war in Ukraine has made clear that mobility is essential for survival on a modern battlefield.
  • That raises questions for the US military about whether towed guns can stay ahead of the enemy.

As the Ukraine war has proven, the effectiveness of artillery rests on more than its range or the destructive power of its shells.

The mobility of a howitzer — its capacity to "shoot and scoot" — can make the difference between living to fight another day and being destroyed by the enemy. That's why the US Army is pondering whether hauling guns by truck is still a viable option.