Dollar - Yen: Commercial War?

There seems to be no trace at the time of the trade war between the Yen and the Dollar.
On the contrary, a real consolidation session of the US China Pact is expected soon, in total tranquility, so there should be no major problems with the Japanese Yen.

The volatility right now will certainly be a lot, this for several reasons.

China for its part could certainly reinforce the "sentiment" of investors.
The white house has chosen to take into consideration the aluminum and steel tariffs and this figure could strongly influence a hypothetical agreement.

Despite this, even the eurozone seriously risks the imposition of heavy duties.