POLISH PRESIDENT LECH KACZYNSKI AND HIS UKRAINIAN COUNTERPART VIKTOR YUSHCHENKO CALLED SATURDAY FOR RECONCILIATION BETWEEN THEIR TWO NATIONS TO HEAL BITTERNESS CAUSED BY ETHNIC VIOLENCE BETWEEN POLES AND UKRAINIANS IN WORLD WAR II, DPA REPORTED. THE TWO LEADERS WERE ATTENDING A COMMEMORATION MARKING THE MURDER OF 366 UKRAINIAN CIVILIANS BY POLISH RESISTANCE FIGHTERS IN MARCH 1945 IN PAVLOKOMA IN SOUTH-EASTERN POLAND. ONLY IN THE EFFORT TO UNCOVER TRUTH CAN DURABLE RECONCILIATION BE ACHIEVED, SAID KACZYSNKI. "WE CANNOT CHANGE THE PAST, BUT WE CAN ENSURE THAT IT DOESN'T DECIDE THE FUTURE." YUSHCHENKO CALLED THE OCCASION A "HISTORIC DAY" AND SAID UNDERSTANDING BETWEEN POLES AND UKRAINIANS GUARANTEED A COMMON PERSPECTIVE IN THE FUTURE. "TODAY WE DECLARE THAT UKRAINE AND POLAND SHOW A NEW POLICY OF SOLIDARITY," HE SAID, RECALLING THE MANY YOUNG POLES WHO TRAVELLED TO UKRAINE TO HELP IN HIS COUNTRY'S PRO-DEMOCRACY "ORANGE REVOLUTION."