Poland and Hungary are important allies of the United States against a decadent global liberalism that has left Western countries shells of their former selves.
The right-wing incumbent appears to have defeated his more socially progressive rival in Sunday's presidential vote, with 99 percent of polling stations having reported results.
President Donald Trump's promise to pull thousands of troops out of Germany and send them to Poland came just four days ahead of President Andrezj Duda's tight reelection.
"The continuation of civilizations and the natural world upon which we depend is in your hands," Attenborough told leaders.
The artist's intention was to "show the highest respect for the memory of the Holocaust."
The president invited the global community to unite in condemnation of the country's latest missile test.
Thousands of women had staged a black protest against the bill on May 9.
Protesters have taken to the streets after the announcement of planned restrictions on press access to parliament.