TOKYO - Warren Nobuaki Iwatake's family has seen more than its share of calamity.

When he was still a child his father was lost at sea off Hawaii. With no breadwinner, his family was forced to move to Japan, where Iwatake was drafted during the war. He lost a brother when the bomb fell on Hiroshima.

But through it all one thing has remained constant.

The tree.

His parents bought it in 1937, and his family has brought it out every Christmas since, without fail, even when that meant risking arrest.

"This tree was a shining light, because it was a symbol of unity in my family," Iwatake said as he and his wife put the final touches on the frail, 3-foot-tall heirloom that is, once again this year, the centerpiece of their small, neatly kept apartment in Tokyo.

"We have put this tree up every year for 70 years."

A special time
Though he considers himself Buddhist, Iwatake was raised in a Christian tradition. He still keeps a photo of the tiny wooden church on Maui where he and his five brothers went to services and Sunday school.

Christmas was always a special time.

His father worked at a merchandise store, and Iwatake remembers the day he came home with a tree. It was nothing all that special, just metal-and-plastic, the kind of decoration that can easily be placed on a table, or in a corner somewhere. He got a string of lights, too, the kind with the big bulbs.

Soon after, his father died in a fishing accident. His body was never found.

Iwatake's mother had relatives in Japan, and took Iwatake's younger brothers there. Iwatake stayed behind to graduate from high school, then, in 1941, six months before Pearl Harbor, he moved to Japan as well.

"Things were pretty bad," he said. "There were war clouds hanging everywhere."

Mother refused to give up
The United States and Britain were the enemy, and Japan clamped down on overt displays of anything Western, including Christianity. Though they had grown up speaking English, Iwatake and his brothers communicated solely in Japanese and did their best to hide their past.

But their mother refused to give up on the tree.

"She was in charge and she wanted to put it up," Iwatake said. "During the war years, we had to do that in secret because in wartime Japan it was not welcome. We could have been arrested."

To keep the neighbors from asking questions, his mother found a place for it in the back of their house, on the second floor, away from the windows.

"We were afraid they would report it to the police, or become suspicious about why we were harboring Western things," he said. "But we were brought up in the American way of life. It is something that you cannot forget. It really is something from the heart."

The year after that first Christmas in Hiroshima, Iwatake went to Tokyo to study economics at university. At Christmas, he directed a school play, a nativity story, again keeping it secret so that the authorities wouldn't get involved.

Then, in 1943, he was drafted and sent to Chichijima.