The final days of 2016 made for a dramatic time in diplomacy.A quick roundup: The U.N. Security Council passed a resolution condemning Israeli settlements in the West Bank; Israel (and President-elect Donald Trump) admonished the U.S. for allowing the vote to pass; John Kerry reiterated his disapproval of the settlements in a blunt speech; and British Prime Minister Theresa May in turn admonished Kerry, though the U.K. was a key broker in the deal.Then there were the sanctions the White House announced in response to Russia's alleged interference in the U.S. election, and Russian President Vladimir Putin's response that he, er, would not respond — for now.There were some bright spots on the world stage, though: There is an effort to end violence in Syria that the U.N. supported Saturday with a new resolution. On Tuesday, Prime Minister Shinzo Abe became the first Japanese leader to visit Pearl Harbor. He delivered a powerful message of reconciliation.Other world leaders offered messages for the new year on Saturday.President Vladimir Putin reportedly congratulated the Russian people for persevering through a difficult year, according to The Wall Street Journal. Putin also extended his congratulations to President-elect Donald Trump.Trump, meanwhile, is well-known for his active Twitter presence. which was often a source of criticism during the election season — prompting rumors that his staff took away his tweeting privileges in the final days of the campaign.On New Year's Eve the president-elect tweeted an unusual holiday message.President Obama gave his weekly address Saturday morning, taking the opportunity to wish everyone a happy new year and look back on his presidency: