Links and Resources : Adlerhorst Police K-9 Training : The United States War Dog Association : Flexi USA : Mechanix Wear   Patterdale Terriers and Argentine Hunting Dogs  Tactical Equipment and Accessories  Blue Collar Working Dogs (Los Angeles area nutrition, gear, training)  Gold Coast K9  Worlds only tactical K9 attic Ramp and Castle's K9 and K9 Guardian provide outstanding K-9 training and equipment in the Pennsylvania area.