In April, a suicide bomber blew herself up at a ceremony in the city's national theatre, killing the popular head of Somalia's Olympic committee and at least five others.
“The theatre blast was a painful incident. It was a shocking day,” Mohamed said.
Somalia has never won a medal at the Olympic games.
Its best performance was in 1996 when its most renowned athlete, Abdi Bile, took sixth place in the 1,500 metres in Atlanta.
At the time, militia fighters in the lawless capital dubbed their machine gun-mounted pickup trucks “Abdi Biles” in a typically Somali mark of respect for the runner's power and speed.
Somalia is not expected to announce the names of the two athletes who will compete in London until later this month. Unveiling their identities earlier might endanger their lives in a country plagued by kidnappings and targeted killings.
Run until you drop
Rarely able to travel to international meets, no Somali athlete qualified for the London Games outright. Each national Olympic committee is eligible for two guaranteed places – one for a man, one for a woman – in athletics.
“Pump your arms. Pump your arms with power,” urged the Somali team coach, Ahmed Ali Abukar, armed with nothing more than a stopwatch.
“Don't slow up. Keep going until you drop,” he yelled as sweat gleamed on Mohamed's sinewy body.
Abukar earns a salary of just $150 (RM450) a month. That comes out of a $2,000 per month pot from the Somali Olympic Committee (SOC) that pays for the four athletes' accommodation in a renovated school classroom, their food and transport costs.
Kadija Dahir, president of the Somali Athletics Federation, said a request to the SOC for a further $3,500 a month to fund the training of two athletes failed.
“We need money to produce quality athletes,” Dahir said. “With that money we wanted to do high altitude training in Ethiopia and buy better clothing and trainers.”
Zamzam Mohamud Farah kneels towards Mecca and prays before taking to the hard-packed dirt track in a pair of heavy trainers, baggy tracksuit bottoms and an orange bandana.
One of two women competing for a wildcard entry, she puts her personal best at around 58 seconds in the 400 metres.
The Women's world record stands at 47.60, a gaping difference that leaves her unlikely to contest a podium finish.
In a fractured country fighting to end 20 years of civil conflict, a medal, though, is hardly the point.
“I would not be going there to win, but for pride,” Farah said. “I would be representing my flag, my soil and its people.” — Reuters