Here is a brief list of terrorist attacks predominately in the west in 2015 or attacking westerners.  Room doesn't allow for all terrorist attacks:
January 7th; Charlie Hebdo shooting
January 8th Murder of a French police officer
January 8th, Porte de Vincennes hostage crisis
January 21, terrorist attacks 12 civilians on a bus in Tel Aviv
January 28, Man stabbed a number of time in Northern Ireland by an Islamic extremist
February 3, Islamic terrorist attacks 3 military police officers guarding a community centre
February 14-15 Copenhagen - Gunman opens fire at an art exhibit killing 1 spectator and wounding 3 police officers, later a Jewish security guard was murdered outside the Great Synagogue
March 6, Bamako, Mali, terrorist attack killing 5 people in a western tourist area.
March 6, Terrorist rams a crowd of border police and attacks them with a knife in Jerusalem.
April 2, over 140 dead in Garissa University attack in Kenya, targeting Christians.
Just a sample.