浑
=
军
+
氵
:
Helga Horse (hu) and the general (军) are partying in the encampment's kitchen ((e)n2). The general hands her a water bottle (氵), but the liquid inside seems very muddy (浑). Helga suspects that the general mixed (浑) her a drink she shouldn't drink.
源
=
原
+
氵
:
The origin (源) of the H bomb can be traced back to when Yu the Great (yu) once forgot a lot of water bottles (氵) next to her A bomb (原) in the anthill's kitchen (an2) and accidentally detonated the bomb.