Don’t ruin your day

Ladonia Minister of Yellow Snow, Per Cod is giving us some important information:

A haubitz (howitzer) is a relatively short cannon firing middle
velocity grenades, usually in a high trajctory. Commonly used in
field artillery, modern versions are usually self propelled
(motorised artillery). One of the most successful artillery design in
history.

Being on the receiving end of a howitzer attack is bond to ruin your
day.