What is the difference between soft landing and go to market strategy?

Soft Landing is a controlled launch into a new market. The purpose is not to crash-land into foreign territory. It is a program for international companies who have launched and gained traction abroad and want to expand to a new market without investing all of their resources at first. 

On the other hand, a go-to-market strategy specifies how a company will reach target customers and achieve competitive advantage. The purpose of a GTM strategy is to provide a blueprint for delivering a product or service to the end customer, taking into account such factors as pricing and distribution.