Cartographic aggression is the term by which the victim country describes any act, in particular the publication of maps or other material by a neighbouring country, which purports to show part of what it perceives as its own territory as belonging to the other country. In rare cases cartographic aggression may be committed by a third country in order to gain some diplomatic advantage.
The term is not new, and well accepted even by professional geographers.
Recent and well-documented cases of cartographic aggression are:

India, China

Involving Aksai Chin, the Bara Hoti Pass area in Uttar Pradesh, Sikkim and Arunachal Pradesh.

Pakistan against India and vice versa

Pakistan followed the American lead (see above) in its own maps. As a result each country accuses the other of cartographic aggression.

Libya against Chad

Libyan maps were issued from around 1969 showing the Aozou Strip

Aozou Strip

The Aouzou Strip is a strip of land in northern Chad which lies along the border with Libya, extending south to a depth of about 100 kilometers into Chad's Borkou-Ennedi-Tibesti Region for an area of 114,000 km²...

as part of Libya. The dispute which led to long-drawn desultory warfare between the two countries was later settled by the International Court of Justice in 1994 which awarded the entire area to Chad.

Libya against Niger

Libya issued maps from around 1969 showing the Toummo Triangle area (approximately 19400 square Km.) as Libyan territory.