Japan is set to begin its joint military exercise with the U.S. Army on its northernmost island of Hokkaido, the day after it started its maritime drills with Russia in the seas off Vladivostok in Russia’s Far East, according to RIA Novosti.

The drills are set to illustrate the country’s Prime Minister Shinzo Abe’s willingness to pursue a balanced defense policy which doesn’t favor either of the two countries versus the other.

“What’s difficult for Japan is that the alliance with the U.S. is the centerpiece of its security policy,” Bloomberg quoted Taisuke Abiru, a research fellow specializing in Russia at research group The Tokyo Foundation, as saying. “How can they maintain this alongside relations with Russia? This is an extremely important problem for Prime Minister Abe now.”

Joint naval exercises between Russia and Japan have been conducted on a regular basis since 1998. The current naval drills, however, are the first since the escalation of the Ukrainian crisis, which led to a temporary halt of Russia-Japan bilateral defense relations.

In September, Japan's Defense Ministry said that the country's navy intended to consult with Russia to confirm its commitment to the development of bilateral relations.