Intense laser-field science is a new interdisciplinary research field, which emerged recently based on the discussion and research exchanges among the researchers in the fields of physics, chemistry, and laser engineering, stimulated largely by the recent innovative development of the ultrashort-pulsed laser technology. The counterpart counties involved in this Core-to-Core project are Canada, France, Germany, Italy, UK, and US. The member researchers of this international network will make an effort cooperatively in order to expand the frontiers of this new research field by taking advantage of their respective research expertise. It is encouraged that researchers in the younger generation will join this program actively by attending seminars and symposia as well by being involved in a joint research program with other research groups in the network.