Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].

BRUSSELS/BERLIN (Reuters) - On the eve of his trip to Europe  Rex Tillerson gave a speech last week that European allies had waited months to hear: an âironcladâ promise of U.S. support to its oldest allies.
 U.S. Secretary of State Rex Tillerson  participates in a panel discussion after  his  remarks on U.S.-European Relations at the Wilson Center in Washington  U.S.  November 28  2017. REUTERS/Yuri Gripas
The question is whether European officials believe him  given tensions during his April visit to Europe  when Reuters reported  Tillerson  initially planned to skip a NATO meeting in Brussels and then only attended under pressure from allies.
âIf there were expectations that  Tillerson  might evolve into a counterweight to Trump  someone who could pass on messages from partners and exert moderating influence over American foreign policy â those expectations have been disappointed â said Niels Annen  foreign policy spokesman for Germanyâs Social Democrats in parliament.
The French have gone around  Tillerson  to develop contacts with U.S. Secretary of Defense Jim Mattis  White House National Security Adviser H.R. McMaster and White House Chief of Staff John Kelly  while the EUâs top diplomat Federica Mogherini has gone directly to Vice President Mike Pence.
One European diplomat said  Tillerson  was in a difficult position from the outset because the Trump administration was hostile to Iran and brought in a team of generals who took a hard line  âso it never left  Tillerson  much room.â
U.S. allies fret as 'guillotine' hangs over Tillerson

Green Day is teaming up with  Miranda Lambert  for a revised version of "Ordinary World " a song originally released on the band's 2016 album  Revolution Radio. The re-recorded track will appear on next month's Greatest Hits: God's Favorite Band as a duet  with  Lambert  and Green Day frontman Billie Joe Armstrong sharing lead vocals.
Related Miranda Lambert Plots 2018 Livin' Like Hippies Tour Jon Pardi joins Grammy winner for 23-city trek with special guest appearances by Brent Cobb  Lucie Silvas and Charlie Worsham
The pairing of a punk-pop band with a mainstream country headliner isn't as incongruous as it might look.  Lambert  and Armstrong previously swapped harmonies at the 2014 Grammy Awards  where the two singers paid tribute to the late Phil Everly with an acoustic performance of the Everly Brothers' 1960 hit "When Will I Be Loved." One year earlier  Armstrong performed a similar mix of mid-century country music and harmony-heavy folk on Foreverly  his duets album with Norah Jones.
21. "Ordinary World: (featuring Miranda Lambert)
Miranda Lambert  Green Day Duet Set for Band's Hits Album

ABOARD THE PAPAL PLANE (Reuters) -  Pope Francis  said on Monday he was really afraid about the danger of nuclear war and that the world now stood at âthe very limitâ.
Asked if he was worried about the possibility of nuclear war   Pope Francis  said: âI think we are at the very limit. I am really afraid of this. One accident is enough to precipitate things.â
 He  did not mention Hawaii or North Korea.
 Pope Francis  has often flagged the danger of nuclear warfare and in November  he  appeared to harden the Catholic Churchâs teaching against nuclear weapons  saying countries should not stockpile them even for the purpose of deterrence.
As reporters boarded  his  plane bound for Chile  Vatican officials handed out a photograph taken in 1945 that shows a young Japanese boy carrying his dead brother on his shoulders following the U.S. nuclear attack on Nagasaki.
âI was moved when I saw this. The only thing I could think of adding were the words âthe fruit of warâ â  Francis  said  referring to a caption put on the back of the image.

Pope Francis Warns About Danger Of Nuclear War: 'We Are At The Very Limit'

