This document provides an overview of the history and business strategies of Harley-Davidson and Honda motorcycles. It describes how Harley-Davidson was the top American motorcycle manufacturer until Japanese companies like Honda entered the US market in the 1950s and 1960s. Honda's innovation and focus on quality allowed it to quickly gain a large market share. The document also discusses how Harley-Davidson struggled after being acquired by AMF in the 1960s but was able to regain success in the 1980s. Porter's Five Forces model is applied to analyze Harley-Davidson's competitive environment. Key aspects of Honda's history, expansion to the US, and strengths are summarized as well.