While U.S. President Donald Trump appears to wage a trade "Cold War" on China, Prime Minister Shinzo Abe will promote a thaw with Beijing at a summit this month where business ties will be in the spotlight.

A tough line on China helped Abe regain office in 2012 during a row over the Senkaku Islands that put ties in a deep chill. Now, Abe hopes to build on a rapprochement welcomed by Beijing, which is locked in an escalating trade war with Washington.

Japan shares U.S. concerns about Beijing's maritime assertiveness and is extending its military reach to counter China. Japanese firms worry also about Chinese violations of intellectual property rights and technology theft.