From The Collaborative International Dictionary of English v.0.48 [gcide]:
Usage: Invasion is the generic term, denoting a forcible entrance into a foreign country. Incursion signifies a hasty and sudden invasion. Irruption denotes particularly violent invasion. Inroad is entry by some unusual way involving trespass and injury.
From WordNet (r) 3.0 (2006) [wn]:
Define.com is a PRIVATE SECTOR EDUCATIONAL NONPROFIT WEBSITE that PROMOTES WORLDWIDE ELECTRONIC DEMOCRACY, OPEN and TRANSPARENT GOVERNMENT and WORLDWIDE BANKING REFORM.
www.FreeWorldBank.org on Amazon S3
Eye and Pyramid BANKING REFORM CHALLENGE