The fighting in Ukraine has made it clear that the French concept of mounting 155mm guns on trucks, so they can rapidly fire a few rounds, then move to avoid return (counterbattery) fire, is effective:
So far, only ten percent of these truck-mounted guns have been destroyed in Ukraine compared to a third of the conventional 155mm guns carried in an armored, tracked vehicle. The getaway speed of the truck-mounted systems made the difference and other countries are taking note.
(Hat tip to Coolbert. RIP.)
Who is surprised that the French came up with this?