Chinese President Xi Jinping (C, R) with Afghan President Ashraf Ghani Ahmadzai (C, L) attend a signing ceremony at the Great Hall of the People in Beijing October 28, 2014. REUTERS/Lintao Zhang/Pool (CHINA - Tags: POLITICS) 

A female member of an honour guard smiles to her compatriot ahead of a welcoming ceremony for Afghanistan's President Ashraf Ghani Ahmadzai outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS MILITARY) 

Members of an honour guard march ahead of a welcoming ceremony for Afghanistan's President Ashraf Ghani Ahmadzai outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS TPX IMAGES OF THE DAY) 

A member of an honour guard holding red flags stands next to ceremonial guns ahead of a welcoming ceremony for Afghanistan's President Ashraf Ghani Ahmadzai outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS MILITARY) 

A military official checks a string, which is used to ensure that members of the honour guard are standing in a straight line, ahead of a welcoming ceremony for Afghanistan's President Ashraf Ghani Ahmadzai outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS MILITARY) 

Afghanistan's President Ashraf Ghani Ahmadzai and China's President Xi Jinping (R) wave to students during a welcoming ceremony outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai and China's President Xi Jinping (rear) attend a welcoming ceremony outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai (L) waves to students as he and China's President Xi Jinping attend a welcoming ceremony outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai (L) and China's President Xi Jinping attend a welcoming ceremony outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai inspects honour guards during a welcoming ceremony outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai (L) and China's President Xi Jinping attend a welcoming ceremony outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai (L) and China's President Xi Jinping attend a welcoming ceremony outside the Great Hall of the People, in Beijing, October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai (R) and China's President Xi Jinping (C) inspect honour guards during a welcoming ceremony outside the Great Hall of the People in Beijing October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghanistan's President Ashraf Ghani Ahmadzai (R) and China's President Xi Jinping inspect honour guards during a welcoming ceremony outside the Great Hall of the People in Beijing October 28, 2014. REUTERS/Jason Lee (CHINA - Tags: POLITICS) 

Afghan President Ashraf Ghani (L) and Abdullah Abdullah, chief executive of Afghanistan, shake hands during a ceremony in which Ghani introduced Abdullah in his newly created role in the national unity government, in Kabul October 1, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in Ghani to head a power-sharing government. Ghani's first act after being sworn in was to sign a decree creating the post of chief executive. Abdullah was sworn in to that job moments later. The specially created post carries powers similar to those of a prime minister. REUTERS/Jawad Jalali/Pool (AFGHANISTAN - Tags: POLITICS RELIGION) 

Afghan national security adviser Hanif Atmar (front R) and U.S. Ambassador James Cunningham sign the bilateral security agreement as Afghan President Ashraf Ghani Ahmadzai (back 3rd R) and Chief Executive Abdullah Abdullah (back 3rd L) look on, in Kabul September 30, 2014. Officials from Afghanistan and the United States on Tuesday signed a long-delayed security agreement to allow American troops to stay in the country after the end of the year, filling a campaign promise by new President Ashraf Ghani.REUTERS/Mohammad Ismail (AFGHANISTAN - Tags: POLITICS) 

Afghan national security adviser Hanif Atmar (front R), U.S. Ambassador James Cunningham, Afghan President Ashraf Ghani Ahmadzai (back 3rd R) and Chief Executive Abdullah Abdullah (back 3rd L) take part in the signing of the bilateral security agreement in Kabul September 30, 2014. Officials from Afghanistan and the United States on Tuesday signed a long-delayed security agreement to allow American troops to stay in the country after the end of the year, filling a campaign promise by new President Ashraf Ghani.REUTERS/Mohammad Ismail (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (C) arrives for his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (C) arrives for his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai takes the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (R) and Afghanistan's Chief Executive Abdullah Abdullah take the oath during their inauguration in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (C) stands with his first vice president Abdul Rashid Dostum (L) and second vice president Sarwar Danish as they take the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (L) stands next to Afghanistan's Chief Justice Abdul Salam Azimi as he takes the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (L) shakes hands with Afghanistan's Chief Justice Abdul Salam Azimi as he takes the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai speaks during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (2nd L) stands next to Afghanistan's Chief Executive Abdullah Abdullah (L) and his deputies as he takes the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (C) stands with his first vice president Abdul Rashid Dostum (L) and second vice president Sarwar Danish as they take the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (L) shake hands with Afghanistan's Chief Justice Abdul Salam Azimi as he takes the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (L) stands next to Afghanistan's Chief Justice Abdul Salam Azimi as he takes the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghanistan's new President Ashraf Ghani Ahmadzai (L) stands next to Afghanistan's Chief Justice Abdul Salam Azimi as he takes the oath during his inauguration as president in Kabul September 29, 2014. Afghanistan inaugurated its first new president in a decade on Monday, swearing in technocrat Ashraf Ghani to head a power-sharing government just as the withdrawal of most foreign troops presents a crucial test. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS TPX IMAGES OF THE DAY) 

Afghan president-elect Ashraf Ghani Ahmadzai speaks during an event in Kabul September 22, 2014. Afghanistan's president-elect promised to end political strife and corruption in a speech on Monday, his first since signing a power-sharing agreement with his rival aimed at bringing months of turmoil to a close. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghan president-elect Ashraf Ghani Ahmadzai greets his supporters during an event in Kabul September 22, 2014. Afghanistan's president-elect promised to end political strife and corruption in a speech on Monday, his first since signing a power-sharing agreement with his rival aimed at bringing months of turmoil to a close. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghan president-elect Ashraf Ghani Ahmadzai (L) prays during an event in Kabul September 22, 2014. Afghanistan's president-elect promised to end political strife and corruption in a speech on Monday, his first since signing a power-sharing agreement with his rival aimed at bringing months of turmoil to a close. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghan president-elect Ashraf Ghani Ahmadzai speaks during an event in Kabul September 22, 2014. Afghanistan's president-elect promised to end political strife and corruption in a speech on Monday, his first since signing a power-sharing agreement with his rival aimed at bringing months of turmoil to a close. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghan president-elect Ashraf Ghani Ahmadzai (C) waves alongside his supporters during an event in Kabul September 22, 2014. Afghanistan's president-elect promised to end political strife and corruption in a speech on Monday, his first since signing a power-sharing agreement with his rival aimed at bringing months of turmoil to a close. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS) 

Afghan president-elect Ashraf Ghani Ahmadzai is seen before speaking at an event in Kabul September 22, 2014. Afghanistan's president-elect promised to end political strife and corruption in a speech on Monday, his first since signing a power-sharing agreement with his rival aimed at bringing months of turmoil to a close. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS HEADSHOT TPX IMAGES OF THE DAY) 

Afghan president-elect Ashraf Ghani Ahmadzai waves as he participates an event in Kabul September 22, 2014. Afghanistan's president-elect promised to end political strife and corruption in a speech on Monday, his first since signing a power-sharing agreement with his rival aimed at bringing months of turmoil to a close. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS TPX IMAGES OF THE DAY) 

Afghan rival presidential candidates Abdullah Abdullah (L) and Ashraf Ghani shake hands after exchanging signed agreements for the country's unity government in Kabul September 21, 2014. Abdullah and GhaniAfghanistan's rival presidential candidates signed a deal on Sunday to share power after months of turmoil over a disputed election that destabilised the nation at a crucial time as most foreign troops prepare to leave. Ashraf Ghani, a former finance minister, will be named president under the deal reached on Saturday night. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

Afghan presidential candidate Ashraf Ghani Ahmadzai speaks during a news conference in Kabul September 10, 2014. REUTERS/Mohammad Ismail (AFGHANISTAN - Tags: ELECTIONS POLITICS) 

Afghan presidential candidate Ashraf Ghani Ahmadzai speaks during a news conference in Kabul September 10, 2014. REUTERS/Mohammad Ismail (AFGHANISTAN - Tags: POLITICS ELECTIONS HEADSHOT) 

Afghan presidential candidate Ashraf Ghani Ahmadzai reacts during an event as he speaks with the media in Kabul August 12, 2014. Afghanistan's embattled presidential candidates remain at odds over key points in a power-sharing deal that aims to end the deadlock over claims of mass fraud and produce a successor to Hamid Karzai before a crucial NATO security summit in September. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

Afghan presidential candidate Ashraf Ghani Ahmadzai speaks to media in Kabul August 12, 2014. Afghanistan's embattled presidential candidates remain at odds over key points in a power-sharing deal that aims to end the deadlock over claims of mass fraud and produce a successor to Hamid Karzai before a crucial NATO security summit in September. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

Afghan presidential candidate Ashraf Ghani Ahmadzai speaks with the media in Kabul August 12, 2014. Afghanistan's embattled presidential candidates remain at odds over key points in a power-sharing deal that aims to end the deadlock over claims of mass fraud and produce a successor to Hamid Karzai before a crucial NATO security summit in September. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry (L) speaks next to Afghan presidential candidates Ashraf Ghani Ahmadzai and Abdullah Abdullah (R) during a news conference in Kabul August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, both candidates told a news conference following meetings with Kerry on Friday. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry (L) and Afghan presidential candidate Abdullah Abdullah (R) smile during a news conference in Kabul August 8, 2014. Afghanistan's rival presidential candidates Abdullah and Ashraf Ghani Ahmadzai have signed a deal to cooperate on the formation of a government of national unity, both candidates told a news conference following meetings with Kerry on Friday. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry (C) along with Afghan presidential candidates Ashraf Ghani Ahmadzai (R) and Abdullah Abdullah (L) attend a news conference in Kabul August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, both candidates told a news conference following meetings with Kerry on Friday. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry (C) speaks next to Afghan presidential candidates Ashraf Ghani Ahmadzai and Abdullah Abdullah (R) and U.N. Secretary-General's special representative for Afghanistan Jan Kubis (L), during a news conference in Kabul August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, both candidates told a news conference following meetings with Kerry on Friday. REUTERS/Omar Sobhani (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry, talks during a meeting with Afghanistan's presidential candidate Ashraf Ghani Ahmadzai and Jan Kubis, the U.N. Secretary-General's special representative, at U.S. embassy in Kabul, August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, one of the candidates told a news conference following meetings with Kerry on Friday. REUTERS/Massoud Hossaini/Pool (AFGHANISTAN - Tags: ELECTIONS POLITICS) 

U.S. Secretary of State John Kerry shows Islamic beads during a meeting with Afghanistan's presidential candidate Ashraf Ghani Ahmadzai and Jan Kubis, the U.N. Secretary-General's special representative, at U.S. embassy in Kabul August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, one of the candidates told a news conference following meetings with Kerry on Friday. REUTERS/Massoud Hossaini/Pool (AFGHANISTAN - Tags: POLITICS ELECTIONS RELIGION) 

U.S. Secretary of State John Kerry (C) shows Islamic beads, as Afghanistan's presidential candidate Ashraf Ghani Ahmadzai (L) and Jan Kubis, the U.N. Secretary-General's special representative (R) look on, during a meeting at U.S. embassy in Kabul August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, one of the candidates told a news conference following meetings with Kerry on Friday. REUTERS/Massoud Hossaini/Pool (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry (C) shows Islamic beads, as Afghanistan's presidential candidate Ashraf Ghani Ahmadzai (L) and Jan Kubis, the U.N. Secretary-General's special representative (R) look on, during a meeting at U.S. embassy in Kabul August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, one of the candidates told a news conference following meetings with Kerry on Friday. REUTERS/Massoud Hossaini/Pool (AFGHANISTAN - Tags: POLITICS ELECTIONS TPX IMAGES OF THE DAY) 

U.S. Secretary of State John Kerry (C) reaches into his pocket to take out Islamic beads, as Afghanistan's presidential candidate Ashraf Ghani Ahmadzai (L) and Jan Kubis, the U.N. Secretary-General's special representative (R) look on, during a meeting at U.S. embassy in Kabul August 8 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, one of the candidates told a news conference following meetings with Kerry on Friday. REUTERS/Massoud Hossaini/Pool (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry (C) reaches into his pocket to take out Islamic beads, as Afghanistan's presidential candidate Ashraf Ghani Ahmadzai (L) and Jan Kubis, the U.N. Secretary-General's special representative (R) look on, during a meeting at U.S. embassy in Kabul August 8 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, one of the candidates told a news conference following meetings with Kerry on Friday. REUTERS/Massoud Hossaini/Pool (AFGHANISTAN - Tags: POLITICS ELECTIONS) 

U.S. Secretary of State John Kerry (R) speaks as Afghanistan's presidential candidate Ashraf Ghani Ahmadzai looks on during a meeting at the U.S. embassy in Kabul August 8, 2014. Afghanistan's rival presidential candidates have signed a deal to cooperate on the formation of a government of national unity, one of the candidates told a news conference following meetings with Kerry on Friday. REUTERS/Massoud Hossaini/Pool (AFGHANISTAN - Tags: POLITICS) 

Afghan presidential candidates Ashraf Ghani Ahmadzai (C) and Abdullah Abdullah (R) smile next to U.S. Secretary of State John Kerry (L) after a news conference in Kabul July 12, 2014. The two rival candidates in Afghanistan's presidential election have agreed to abide by the results of a U.N.-supervised recount of the entire poll to settle their dispute over the outcome, Kerry said after talks with both men. REUTERS/Mohammad Ismail (AFGHANISTAN - Tags: ELECTIONS POLITICS) 

Afghan presidential candidates Ashraf Ghani Ahmadzai (L) and Abdullah Abdullah (R) hug each other during a news conference in Kabul July 12, 2014. The two rival candidates in Afghanistan's presidential election have agreed to abide by the results of a U.N.-supervised recount of the entire poll to settle their dispute over the outcome, Kerry said after talks with both men. REUTERS/Mohammad Ismail (AFGHANISTAN - Tags: ELECTIONS POLITICS)