disposition of troops / wave / spate / burst / spell / short period of time / classifier for events or states of short duration
阵
=
车
+
阝
:
James II of England (zh) and the pope (阝) were supposed to be in the army's very first attack wave (阵) driving a red cabriolet (车), but somehow they got lost and ended up in the encampment's bathroom ((e)n4).