The Abe administration aims to lift a long-standing ban on providing weapons and ammunition to foreign militaries, in a bid to expand the Self-Defense Forces' logistical support capabilities, a government source said on Wednesday.

Prime Minister Shinzo Abe's ruling coalition may discuss the proposal as early as Friday, the source said.

Junior coalition partner Komeito is cautious about loosening constraints on the SDF, amid concern that providing arms to foreign militaries could run counter to Japan's pacifist Constitution.