incursion
//ɪnˈkɜːʒən//
Noun
incursionSingular
incursionsPlural
1
A sudden invasion or attack, especially into enemy territory.
The military launched a sudden incursion into enemy territory.
2
An unwelcome intrusion or encroachment into a place, situation, or sphere of activity.
The company viewed the new regulations as an incursion into their business practices.