world leaders and governments

Mexico:

federal republic 

President Enrique PENA NIETO

China:

communist state 

President XI Jinping

India:

federal republic 

Prime Minister Narendra MODI

Russia:

federation

President Vladimir Vladimirovich PUTIN

Germany:

federal republic 

Chancellor Angela MERKE

United Kingdom: 

constitutional monarchy and conventional wealth realm

Prime Minister David CAMERON

France:

republic 

President Francois HOLLANDE

Brazil:

federal republic 

President Dilma ROUSSEFF

Syria:

republic under an authoritarian regime

President Bashar al-ASAD

Canada:

a parliamentary democracy, a federation, and a constitutional monarchy

Prime Minister Justin Pierre James TRUDEAU

Iraq:

parliamentary democracy

President Fuad MASUM

Israel: 

parliamentary democracy
Prime Minister Binyamin NETANYAHU