On the face of it, it appeared a futile gesture, thought Ogawa. Japan needed her submarines for homeland waters defense rather than instigating minuscule attacks with a pair of small aircraft. But there was the question of Dr. Tanaka and his unidentified cargo.
Summoned to Ogawa's cabin, Tanaka bowed gracefully before entering the cramped quarters and seating himself at a small wooden table. The slightly built scientist bore a shrewish and unsmiling face. A pair of vacant black eyes that were magnified by thick glasses augmented his sinister appearance.
Dispensing with formalities, Ogawa pressed immediately for the nature of the doctor's presence.
"Dr. Tanaka, my written orders are to sail this vessel to the west
coast of North America and launch an airborne attack on four cities. There is no mention of your duties or the nature of your cargo. I must ask what your role in the mission is."
"Commander Ogawa, rest assured that my assignment here has been authorized at the highest levels," Tanaka replied in a quiet monotone voice. "I will be providing technical assistance for the attack operation," he continued.
"This is a warship. I fail to understand how a medical officer will assist in a naval strike," Ogawa countered.
"Commander, I am with the Army Medical School's Epidemic Disease Prevention Study Group. We have received materials from a research facility in China that have enabled us to develop an effective new weapon against the enemy. Your submarine has been chosen as the means to launch the weapon for the first time against American forces. I am responsible for the security and deployment of the weapon on this mission."
"These 'materials." They will be dropped from my aircraft?"
"Yes, in special canisters that can be accommodated by your bombers. I have already made the necessary arrangements with your aviation ordnance crew."
"And the men on my vessel. Are they in any danger with this weapon aboard?"
"None whatsoever." Tanaka's face was inscrutable as he lied.
Ogawa didn't believe him, but figured the risk of the American Navy's antisubmarine warfare forces were a greater risk to his sub than anything carried on board. Ogawa tried to procure what little information he could from Tanaka, but the Army doctor volunteered few additional facts. Whatever mystery was associated with the weapon, he kept close to the vest. There was something ominous about the man, Ogawa decided, and it made him uncomfortable. After sharing a quick cup of tea, he dismissed the eerie scientist. Sitting silently in his cabin, Ogawa cursed the Fleet Command for selecting his vessel for the assignment. It was a mission that he didn't want.
The sporadic ocean traffic of merchant ships and fishing boats soon dissipated as the Japanese mainland fell behind the sub's wake and the vessel crawled farther north in latitude. For the next twelve days and nights, the crew embraced a normal operating schedule as the sub nosed northeast, surfacing at night to run at higher speed. The prospect of being detected by an Allied plane or ship was more remote in the north Pacific, but Ogawa took no chances and ran submerged during all daylight hours. Operating under the waves, the bottled-up sub became like an oven to the men who drove her. Interior temperatures would climb into the nineties from the machinery, while the confined air would grow foul to the breath over the hours. Evening darkness was eagerly anticipated by each crewman, knowing the sub would finally surface, open its hatches, and vent cold, fresh sea air into the dank interior.
Naval authority on submarines was notably relaxed, even in the Japanese Navy, and operations on the I-403 were no different. Officers and enlisted crew mixed easily, sharing the same meals and suffering the same miseries aboard the cramped vessel. The I-403 had survived depth charge attacks on three different occasions and the near-death experiences had bonded the crew tightly together. They were survivors in a deadly game of cat and mouse and felt the I-403 was a lucky ship that could defy the enemy.
On the fourteenth night, the I-403 surfaced near the Aleutian island of Amchitka and quickly found the supply ship Morioka anchored in a small cove. Ogawa gently brought his vessel alongside the surface ship and mooring lines were tossed across. As diesel fuel was pumped into the submarine's reservoir tanks, crewmen on each vessel bantered back and forth in the freezing cold.
"Aren't you a little cramped in that anchovy tin?" asked a bundled yeoman at the ship's rail.
"No, we've got plenty of room for our canned fruit, chestnuts, and sake!" yelled back a submariner, boastful of the superior food the undersea services were provided.
The refueling operation was completed in less than three hours. One of the submarine's crewmen, diagnosed as suffering an acute bout of appendicitis, was transferred to the ship for medical attention. After rewarding the supply ship crew with a box of hard candies, the I-403 cast off on an eastward tack toward North America. The skies gradually turned black and the gray-green ocean waters frothed with spray as the I-403 found herself sailing into the teeth of an early winter storm. The sub was tossed violently for three nights as waves flooded across the low deck and crashed into the conning tower as the sub attempted to recharge its batteries. A lookout was nearly washed overboard into the icy seas on one occasion, and many of the experienced crew succumbed to bouts of seasickness. Strong westerly winds aided the voyage, however, pushing the sub briskly through the swells and quickening its trek east.
Gradually, the winds began to ease and the seas flattened. Ogawa was pleased to find his vessel had survived Mother Nature's buffeting with no damage. The battered crew regained their sea legs and their fighting morale as the seas stabilized and the submarine neared the enemy's homeland.
"Captain, I have a final plot to the coast," Seiji Kakishita remarked as he unrolled a chart of the northeast Pacific Ocean in front of Ogawa. The I-403's navigator had ceased shaving, like many crewmen upon leaving port, and sported a straggly tuft of hair from his chin that created a cartoonish look about him.
"What is our present position?" Ogawa inquired as he studied the map.
"Right here," Kakishita replied as he pointed to a spot on the map with a pair of dividers. "Approximately two hundred kilometers west of Vancouver Island. We have two more hours of darkness for surface running, which will bring us to within 150 kilometers of land by daybreak on our current heading."
Ogawa studied the chart intently for a few moments before speaking. "We are too far north. I wish to launch the attack from a point central to the four targets in order to minimize flight time. Bring us south and we'll approach the coastline here," he said, stubbing his finger at the map. Beneath his fingertip lay the northwest tip of Washington State, an angular peak of land that jutted into the Pacific Ocean like the snout of a hungry dog. Just to the north lay the Strait of Juan de Fuca, which created a natural border channel with British Columbia and was the main thoroughfare for maritime traffic from Vancouver and Seattle into the Pacific Ocean.
Kakishita hurriedly plotted a new route on the map and recalculated the distances. "Sir, I compute that we can arrive at a position fifteen kilometers offshore from the point marked "Cape Alava' in twenty-two hours."
"Excellent, Kakishita," Ogawa replied smugly as he eyed a nearby chronograph. "That will allow us plenty of time to commence the attack before dawn." The timing was right. Ogawa wished to spend as little time as possible in high-traffic areas where they might be spotted before launching the strike. Things seemed to be falling into place, he thought. With a little luck, they might just be on their way home from a successful mission in just over twenty-four hours.
A buzz of activity overtook the I-403 after it surfaced again that evening as preparations were made to launch the aerial strike. Mechanics pulled out the fuselage, wings, and pontoons of the aircraft and began piecing the parts together like some giant toy model. Seamen rigged the hydraulic catapult and carefully tested the device by which the planes would be launched. The pilots attentively studied topographic
maps of the region, plotting their course to the drop zones and back. And the ordnance men, under the cautious direction of Dr. Tanaka, configured the bomb racks of the Seiran bombers to hold the twelve silver canisters still stored in the forward torpedo room.
By three in the morning, the I-403 had crept quietly to its staging point off the Washington coast. A light drizzle was falling and the six lookouts Ogawa had stationed on deck strained to peer through the murky darkness for signs of other vessels. Ogawa himself paced the open bridge nervously in anxious wait to see the aircraft off, so that he could hide his submarine under the protection of the rolling seas.
Another hour had ticked by when a hurried squat man in a grease-stained jumpsuit approached Ogawa tentatively.