[n] influencing strongly; "they resented the impingement of American values on European culture"
[n] entry to another's property without right or permission
[n] any entry into an area not previously occupied; "an invasion of tourists"; "an invasion of locusts"
1. The act of entering gradually or silently upon the rights or possessions of another; unlawful intrusion. An unconstitutional encroachment of military power on the civil establishment. --Bancroft.
2. That which is taken by encroaching on another.
3. (Law) An unlawful diminution of the possessions of another.