One of the most difficult things to do is get the puck out of your defensive zone when a team is forechecking aggressively. Check out this video on offensive zone attack options.
The key is for the first forward into the zone to be very aggressive against the puck carrier. In the video we discuss options that apply if we can’t get enough pressure on the defenseman before he gets to the puck. Always impress on your forwards that they have to be aggressive on the forecheck otherwise it is not going to be successful.