For a week, trucks and people have been stuck at border posts between Rwanda and Uganda, crippling trade and causing a diplomatic standoff.
Relationships within the six-member East African Community have never been easy. The latest stand-off between Rwanda and Uganda follows a spat of accusations over the treatment of traders and nationals on either side, as well as spying allegations.
"The Rwandan border officials are not stamping our passports," Rwandan truck driver Johnson Kiyingi told DW. He's been stuck at the Katuna border crossing for three days. "The Rwandan side is peaceful, there are no issues. We spent the whole day here and in the evening, police ordered us to go into our trucks."
After the weeklong stand-off, Rwanda is letting some of the traders back in, but is warning its own citizens about travelling to Uganda, citing security reasons.
Rwanda's minister for foreign affairs, Richard Sezibera, says that the issues with Uganda have been going on for a while and efforts to address them have hit a snag. Speaking to reporters, he accused Uganda of harboring armed groups.
"Rwandans are arrested, tortured, harassed and deported for reasons not clear to us," he said. "The second challenge is that there are armed groups that are opposed to the government of Rwanda that have a violent agenda,who operate in Uganda."
Rwanda is particularly concerned about the alleged existence of the Rwandan National Congress (RNC) group in Uganda - a group that it claims is plotting to overthrow the Rwandan regime.
Ugandan Foreign Affairs Minister Sam Kutesa denied these allegations. "Uganda does not and cannot allow anybody to operate in its territory that threatens a neighbor," his statement read. While Uganda's government has downplayed the matter, both the Ugandan business community and parliament are demanding answers.
Ugandan writer and political risk analyst, Angelo Izama, thinks that the matter could be resolved if the two sides just sat down together to talk. "We've been there before," he told DW. "I think if Rwandans feel more comfortable about those internal tensions and Uganda can provide that assurance, that this would go away."
The dispute has been brewing below the surface for several months. In 2018, Ugandan police chief General Kale Kayihura was arrested and is being tried in court over allegedly helping to kidnap Rwandans living in exile in Uganda and handing them over to the Rwandan government.
When leaders lock horns
According to Izama, it is ordinary Rwandans and Ugandans who are suffering from the dispute. "I think most ordinary East Africans are ahead of the governments with integration. There's a large movement of people and trade," Izama told DW. The two countries have longstanding historical ties, he says, and the border which came with colonialism separated people who actually spoke the same languages and had the same culture.
"A large number of Rwandan refugees in the 1980s joined the army of Yoweri Museveni and were instrumental in bringing him to power," Izama said. "Later, in the1990s, a whole division of the Ugandan army entered Rwanda and was led by Paul Kagame, who was a Ugandan military officer at that time. And they have joint interests in the DRC nearby."
Another loser in the dispute is the East African Community - the six-nation regional body, which has been discussing freedom of movement of people and goods, a common currency and stronger regional ties, for years. Kenya, Uganda and Tanzania even have an East African passport, which should allow free travel within the area.
"There are more reasons today for the East African Community to fall apart than stay together," argues Izama. "There are political systems operated on very different currents. There's democracy in Kenya and Tanzania is becoming increasingly authoritarian, Burundi is on its own tangent. So it may appear that this is a death knell for the East African Community idea."
What could still save the situation, he thinks, is if both leaders were to put their personal grievances aside. Both strongmen, Museveni and Kagame, are known to be keeping a tough grip on their countries, running what Izama calls 'a model of the personalized state.'
"I think the two leaders must take a step back and consider that they're not the only two people in the room and that they're not the only two people with a vision of what is right," he said.
Nasra Bishumba contributed to this report