First victim of Donald Trump's foreign policy

Donald Trump presidency is still a great unknown. We do not know the positions of the main cast, we do not know which of the election promises of the new President intends to implement. However, based on several short speeches of DT and simultaneously fast moves of Russia, you can definitely tell who will be the first victim of the change in US foreign policy: it's TOKYO.
Prime Minister Abe was the first head of state leads to a meeting with the President - elect, trying to keep a key for Japan's alliance with the United States. It didn't help. Donald Trump announced the withdrawal of the US from the TPP agreement. He also suggested the need for greater involvement of Japan in regional security issues. Russians do not waste time and place on the Kuril Islands anti-missile systems "Ball" and "Bastion". Placement of the new missile systems is a clear signal of the Russian Federation determined to preserve these areas for themselves. President Putin knows when to deal the final blow.
"America first" is the catchy and compelling watchword. However, the foreign policy of a great power, can not be based on the business strategy, "which now pays off." The post-war alliance with Japan was a key element in maintaining peace in the region. A loyal ally which for years was Japan gave the Americans an advantage over Russia and allowed to hold in check the other players in the region. Disassembly of long-term agenda in the region, where so unpredictable countries like China, Korea, and the Philippines are playing the power game, is at least unwise and short-sighted.Changing the balance in the region can directly lead to war.
The last argument, which apparently is not taken into consideration by new President - elect, is that American security guarantees for Japan (country till last year with pacifist constitution) is a matter of honor.