Nuisance involves the physical invasion of another's property.

Nuisance

That which endangers life or health, gives offense to the senses, violates the laws of decency, or obstructs the reasonable and comfortable use of property.

Invasion

The act of entering a place or area by force, often used in a military context.

Property

Something that is capable of being owned. A right or interest associated with something that gives the owner the ability to exercise dominion over it.