Thousands of people from Central American nations have resumed their efforts to enter the US from the Mexican border. The large caravan, mostly from Honduras, has walked from the Ciudad Hidalgo to Mexico's Chiapas State.

US President Donald Trump has showed his unhappiness on the refugee issue, and on Sunday, he tweeted: “Full efforts are being made to stop the onslaught of illegal aliens from crossing our Southern Border. People have to apply for asylum in Mexico first, and if they fail to do that, the US will turn them away. The courts are asking the US to do things that are not doable!” Trump also suggested the caravan was politically motivated.

According to Han Han, a research assistant at the Institute of Latin American Studies under the Chinese Academy of Social Sciences, Trump's words for the refugee issue is to get more support for his party in the midterm election. 

Trump is also not satisfied with the situation, especially the political and social situation in Central America – especially Honduras – because he believes Honduras' internal issues affect US security, especially with Mexico.

Trump has repeatedly warned the migrants to go back, threatened to close down the US border and cut off financial aid to countries that have allowed the migrants to pass.

However, the immigrants said they fled because of violence and poverty and the group includes women and children, as well as men. Aid group Save the Children estimates one in four members of the caravan are children.

Mexico's incoming president Andres Manuel Lopez Obrador has expressed his concern for the issue and said his country would make efforts to protect the human rights of those immigrants, especially the women and children.

Han agrees that, in the short term, the Mexican government will support the refugees. Nevertheless, in the long term, she believes the problem can only be solved with more effort from the governments of the Central American countries.

Mexico isn't the only place dealing with a significant refugee issue, it is also a headache for Europe, where countries are taking an increasingly harsher stance towards immigrants. The growing number of immigrants and the inability to deal with them is now a significant problem.

For this, Han said that internal and external factors should be both considered: “The internal facts are that a lot of countries face the same problem, just like the social and the political problem, and the people are not satisfied with the actual government in their own countries so they want to go abroad and to have a better life.”

Besides, the downturn of the world economy means these countries have less financial support for immigrants but they will need to face these social problems and work towards improving the lives of their people, Han added.