The Conflict about the Japan U． S． Security Treaty（JUSST）is fought between the Liberal Democratic Party（LDP）and the Japan Socialist Party（JSP）， though disagreement about the Constitution emerged within the LDP， Some LDP members support Taiwan， while others support the People’s Republic of China． Postwar settlement was not discussed until the 1980s． These inconsistent partisan divisions d6n’t fit with the conventional right－left ideology． These issues differ not only in terms of partisan division but also the policy dimension；the JUSST and the China problem are concerned with the Cold War dimension， while the Constitution and postwar settlement are related to the stateness dimension． Since the Cold War dimension is more salient than the stateness dimension， the partisan division on that issue， the LDP vs． the JSP， was fixed in 1955． As a result， issues of the Constitution and postwar settlement have never been solved
