Fortifications: Indicates that your troops are using some form of fortification. Line Connection: Indicates that two 'neighboring' units have no exploitable gap between them, but using this 'stretches out' your lines, so the longer the distance between the actual units, the less concentration of units within the whole line. Movement: Goes behind your units as a sorta 'trail' when they advance. Frontline: indicates the line between occupied territories.
